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[suspenseful music playing]
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[Patrick] This is
the mother of them all,
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I mean, it is the deepest
of them all.
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00:00:11,211 --> 00:00:13,078
So, we've got a lot on the line.
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We're going to be assaulting
the challenger deep
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with more technology
and more capability
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than anyone has ever done
in history.
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You realize how deep
we are, right?
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[Alan] Oh, my word,
look at that!
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It's going up!
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[Victor]
Oh! This is really hard.
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[Alan] Whoa! Up, up, up up!
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What the hell was that?
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[machine beeping]
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Got a big battery fault.
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Surface, LF has lost power.
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[suspenseful music playing]
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[Demetri] Humankind has explored
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every continent on Earth.
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We've climbed
its tallest mountains,
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and even journeyed into space.
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[man] Thank you, Mr. President.
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[Demetri]
But there's a vast swathe
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of our own planet
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that has remained a mystery.
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The deep ocean.
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Stretching down over 35,000 feet
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into crushing pressures,
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it's been near impossible
to reach...
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until now.
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New engineering
breakthroughs are driving
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an audacious global mission
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to dive to the deepest points
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of all the five oceans,
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for the first time in history.
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These pioneers
will push technology
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to the limit...
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[Patrick]
What the hell was that?
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We have leak in hatch
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[Patrick] Oh, my God.
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[Demetri] ...to open up
this final frontier,
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as never before.
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[Cassie] Trying to like
mentally put yourself
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at the bottom
is just mind blowing.
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[Demetri]
Mapping hidden landscapes
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discovering
unknown life forms...
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[Alan] What on Earth was that?
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[Victor]
There is something there.
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[Demetri] ...and unlocking
the secrets
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of how life
in the extreme deep ocean
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affects our entire planet.
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[dramatic music playing]
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[suspenseful music playing]
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[Demetri] Ex Naval Commander
Victor Vesco,
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is now getting ready to face
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the ultimate challenge
of this expedition,
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the deepest dive on our planet.
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[Kelvin] Roger that.
You are free to dive.
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[Demetri] So far
he's travelled 20,000 miles
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half way across the world
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and completed three
record-breaking dives.
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[Victor] And I just wanted
to say thank you all
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for getting us to this point.
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It's been four years
since we first started
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thinking about this
overall mission.
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[Demetri] But now,
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he will be pushed to the limit
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by the largest and deepest
of the Earth's oceans.
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The Pacific.
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[Rob] I mean, this is
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the mightiest ocean of them all,
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this is a third
of the surface of our planet.
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The Pacific Ocean is
different than all the others
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in that it has the oldest
seafloor in the oceans.
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It is just much deeper,
much older ocean.
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[Demetri] It is also home
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to the deepest place on Earth,
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the Mariana Trench.
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[Victor] From a very young age
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I loved just looking at atlases
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and one of the most prominent
features in any Atlas
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is the deepest point
in the world
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which is the Mariana Trench.
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This deep dark place,
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of course it captured
my imagination.
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[Demetri] It's 8,000 feet deeper
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than any dive
Victor has attempted before,
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and it will subject the sub
to enormous pressure.
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[Patrick] Just come up
on the A-Frame.
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Let me know when we're clear
for straps, Kelvin.
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[Kelvin] Yeah,
we're clear for straps.
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[Rob] It's as an extreme
environment
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as we have on planet Earth.
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This is the major league,
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you know, this is as difficult,
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as technically challenging
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as submersible diving gets
on planet Earth.
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[Demetri] The bottom
of the Mariana Trench
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has only been only visited
by three people
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and one of them is on board.
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Okay, good. Thank you guys.
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[Demetri] Captain Don Walsh.
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In 1960 he and a fellow
deep-sea explorer
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took an experimental craft
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to the uncharted depths
of our planet.
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[Don] I never had any fear.
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Why have fear?
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What are you gonna do about it?
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You're committed.
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You're gonna go down there
as far as you can,
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if something doesn't work,
too bad.
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And there's nothing
you can do about it.
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[Demetri] Fifty-two years
later in 2012,
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Don witnessed a solo dive
by Hollywood director
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and deep-sea explorer,
James Cameron,
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who recorded a depth
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just 10 feet
shy of Don's record.
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[phone ringing]
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[James] Hey, Victor.
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Hi, Jim, how are you?
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[James] Hi, good, good.
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[Victor] It's great sitting
next to the first person
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to go down
to the Challenger Deep
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and it's just so wonderful
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to be able to talk
to the second person
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and hopefully we can continue
passing the baton.
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[James] Yeah that's great.
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I mean, you've really
kicked the ball further
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down field
in terms of the technology.
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And the only other piece
of advice I would give
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is give yourself a moment, stop,
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and just look at the window
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and just think
about where you are
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and what it means.
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That's great, Jim.
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I appreciate that.
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[Demetri] But now,
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Victor is on a mission
to find a spot
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even deeper than Don Walsh
and James Cameron,
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and break a record
that has stood for 60 years.
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[Cassie] We have
one of the best sonars
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in the world right now
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and we're going to produce
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the most accurate map
of the Mariana Trench
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that's ever been done before.
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[Demetri] The deepest section
of the Mariana Trench
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is in a hollow known
as the Challenger Deep.
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But the team
also want to take on
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a deep ocean exploratory dive,
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a hundred and forty miles east
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in the Sirena Deep,
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where no submersible
has ever been before.
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[Patty] So, the deepest part
is right in here.
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Nobody's been down there.
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[Demetri] The team will
be on the hunt
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for vital new scientific data
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that may help find alien life
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elsewhere in our solar system.
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Because there are frozen moons,
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like Europa orbiting Jupiter,
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that NASA believes
could hold life.
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Beneath the surface ice,
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deep oceans
might nurture organisms
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able to exist in environments
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as extreme
as the Mariana Trench.
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[Patty] NASA's
search for life efforts
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are looking
for the limits of life.
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They are very interested
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in looking at the deep trenches
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to see if microbes can live
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in these most extreme
environments on the planet.
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[Demetri] If they can find
colonies of bacteria
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in the Mariana Trench,
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then extreme forms of life
could also exist
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in the oceans
of those alien moons.
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The general conception
I have for this dive
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is that this is very much
a science focused dive.
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One thing
that I am concerned about
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and that's recovering
the samples.
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First priority is a rock
with some stuff on it.
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Fingers crossed.
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Just be vigilant
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as you're approaching
the bottom.
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That, that depth sounder,
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once it starts picking up
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and as you know
Victor giving you
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- reliable data...
- Mmm-hmm.
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...you gotta pay attention
to it,
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you can't ignore it.
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I mean, I don't know
if there's pinnacles
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or haystacks.
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Who knows what we'll find.
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[Kelvin] We're gonna leave
that one down.
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[Demetri] Even though
the dive is not the deepest
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in the Mariana Trench,
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at 35,000 feet
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it will put
the sub's engineering
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under massive strain.
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[Patrick]
It's a substantial pressure,
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so we've got a lot on the line.
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We basically got
all the poker chips
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in the center of the table.
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[Demetri] Chief scientist,
Alan Jamieson
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is joining Victor
on this pioneering dive.
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00:07:53,272 --> 00:07:55,040
- Welcome back, sir.
- Hello.
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[Kelvin] LF, LF, SO.
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[man] LF, LF.
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[Kelvin] Hey, we're gonna go
for release here.
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We'll let the sub off the hook.
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- Do it.
- Perfect.
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[Stuart] And we're currently
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about 900 meters
from the drop zone.
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00:08:09,622 --> 00:08:10,922
[Kelvin] Okay. Roger that.
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[Patrick] We can tow him
for a couple of minutes,
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00:08:14,160 --> 00:08:15,660
no worries.
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[Stuart] Twelve,
before a few minutes
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00:08:17,163 --> 00:08:18,697
until we're ready to let him go.
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[Demetri] To dive
Victor will pump water
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00:08:21,334 --> 00:08:23,735
into empty ballast tanks
at the top of the sub.
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But now the waves are picking up
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and flooding them early.
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[Rob] Seventy-five to go.
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[John] They're spending a lot
of time under the water.
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The tanks are gonna be
filling all the time.
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[Patrick] Son of a [bleep].
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00:08:40,987 --> 00:08:44,523
[Frank] With that
much weight on the sub.
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That [beep] goes down quick.
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00:08:46,325 --> 00:08:48,226
[Rob] Fifty meters to go.
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00:08:51,097 --> 00:08:52,063
[Patrick] That's gotta be it.
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We can disconnect now.
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00:08:53,266 --> 00:08:54,733
[Rob] Release, release!
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00:08:57,003 --> 00:08:57,802
[Patrick] It's tied off.
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00:08:57,837 --> 00:08:59,204
Get that [bleep] tow line.
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00:08:59,238 --> 00:09:00,772
[man] Grab on that tow line.
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00:09:02,275 --> 00:09:04,009
[Patrick] Get her loose.
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00:09:04,043 --> 00:09:05,510
[Rob] Release.
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00:09:05,545 --> 00:09:07,145
[Patrick]
When those tanks filled up,
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00:09:07,179 --> 00:09:10,682
- she's diving.
- [Rob] Release.
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00:09:10,716 --> 00:09:12,884
[Demetri] Swimmer Tim's
got just seconds
240
00:09:12,952 --> 00:09:14,419
to release the towline
241
00:09:14,453 --> 00:09:15,987
and must avoid getting entangled
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and dragged to his death.
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00:09:17,623 --> 00:09:19,891
[Rob] Release, release, release!
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00:09:28,067 --> 00:09:29,634
[suspenseful music playing]
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00:09:29,669 --> 00:09:30,969
[Patrick] Those tanks filled up.
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00:09:31,003 --> 00:09:33,138
She's diving.
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00:09:33,172 --> 00:09:34,906
[Rob] Release, release, release!
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00:09:34,941 --> 00:09:36,641
[Patrick] Come on, Tim,
get her loose.
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00:09:37,577 --> 00:09:40,579
[suspenseful music playing]
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00:09:48,087 --> 00:09:49,521
[Tim] As I am taking
handrails off,
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I could feel the sub going out
252
00:09:51,090 --> 00:09:51,990
from underneath me.
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00:09:52,024 --> 00:09:53,258
In a bit of a panic,
254
00:09:53,292 --> 00:09:54,793
I tried to get out of there
as quick as possible
255
00:09:54,827 --> 00:09:56,628
to make sure I wasn't
tangled up in anything.
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00:09:58,664 --> 00:10:00,165
[Demetri] On their way down,
257
00:10:00,199 --> 00:10:01,633
Victor and Alan pass through
258
00:10:01,667 --> 00:10:03,134
the top layer of the ocean,
259
00:10:03,169 --> 00:10:04,736
called the Sunlight Zone.
260
00:10:06,472 --> 00:10:07,772
Home in the Pacific
261
00:10:07,807 --> 00:10:10,875
to one of the nature's
greatest survivors,
262
00:10:10,910 --> 00:10:12,544
the nautilus.
263
00:10:13,779 --> 00:10:16,014
It's remained
virtually unchanged
264
00:10:16,048 --> 00:10:19,050
for half a billion years.
265
00:10:19,085 --> 00:10:23,154
As the sub goes deeper,
the light dwindles,
266
00:10:23,189 --> 00:10:26,091
and they enter
the Twilight Zone.
267
00:10:26,158 --> 00:10:28,126
Here, out of the darkness
emerges
268
00:10:28,160 --> 00:10:30,161
one of the wonders
of the deep ocean,
269
00:10:30,196 --> 00:10:32,864
creatures that generate
their own light.
270
00:10:35,267 --> 00:10:36,534
[Alan] Wow,
look at the bioluminescence,
271
00:10:36,569 --> 00:10:37,836
can you see it?
272
00:10:37,870 --> 00:10:39,371
- Yeah? That was great...
- [Victor] Oh, that's so cool!
273
00:10:39,405 --> 00:10:41,172
- [Alan] ...isn't it?
- [Victor] Yeah.
274
00:10:41,207 --> 00:10:43,375
[Alan] Bioluminescence
is the most commonly used
275
00:10:43,409 --> 00:10:45,143
communication on planet Earth.
276
00:10:45,177 --> 00:10:47,112
In terms of the number
of species that use it.
277
00:10:52,752 --> 00:10:54,285
[Demetri] In the Pacific
278
00:10:54,320 --> 00:10:55,754
the Twilight Zone holds
279
00:10:55,788 --> 00:10:57,255
other extraordinary creatures
280
00:10:57,289 --> 00:10:59,090
adapted to live in the gloom.
281
00:11:00,393 --> 00:11:02,360
Like the Cock-eyed Squid.
282
00:11:03,596 --> 00:11:05,830
Its larger left eye can pick out
283
00:11:05,865 --> 00:11:08,533
camouflaged prey
in the waters above.
284
00:11:09,869 --> 00:11:12,570
While its smaller right eye
points downwards
285
00:11:12,605 --> 00:11:15,507
to spy any predators
lurking below.
286
00:11:18,044 --> 00:11:20,879
The sub is now passing 3,000ft.
287
00:11:20,913 --> 00:11:23,948
Beyond here a US nuclear sub
288
00:11:23,983 --> 00:11:26,317
would be crushed like a tin can.
289
00:11:26,352 --> 00:11:29,954
This is the Midnight Zone,
290
00:11:29,989 --> 00:11:32,190
where some of the most
bizarre animals
291
00:11:32,224 --> 00:11:34,993
on the planet
are still being discovered.
292
00:11:35,027 --> 00:11:37,062
This is a Gulper Eel,
293
00:11:37,096 --> 00:11:38,997
which can detach its jaw
294
00:11:39,031 --> 00:11:42,600
and inflate its body
to swallow much larger prey.
295
00:11:44,537 --> 00:11:47,439
[Victor] Somewhere between
3,000 and 6,000 years
296
00:11:47,473 --> 00:11:49,374
just as the pressure decreases
297
00:11:49,408 --> 00:11:51,176
the size of the sphere,
it tightens
298
00:11:51,210 --> 00:11:52,811
and it happens suddenly.
299
00:11:52,845 --> 00:11:54,379
It makes a little wrapping noise
300
00:11:54,413 --> 00:11:55,380
on the capsule,
301
00:11:55,414 --> 00:11:56,614
it's a little unnerving.
302
00:12:00,286 --> 00:12:04,789
We've been in
the submersible now for...
303
00:12:04,824 --> 00:12:07,225
three hours and nine minutes.
304
00:12:09,795 --> 00:12:10,995
[Demetri] The sub is now
305
00:12:11,030 --> 00:12:13,264
in the deepest ocean
region of all,
306
00:12:13,299 --> 00:12:15,033
the Hadal Zone.
307
00:12:16,469 --> 00:12:19,838
And finally
their goal is in sight.
308
00:12:19,872 --> 00:12:21,473
[Victor] I can see it,
309
00:12:21,507 --> 00:12:22,907
see it slowly getting lighter?
310
00:12:24,243 --> 00:12:25,510
Eleven meters of the bottom,
311
00:12:25,544 --> 00:12:27,178
we should see it very shortly.
312
00:12:29,248 --> 00:12:30,682
Four meters off.
313
00:12:34,220 --> 00:12:36,287
It's one meter off the bottom.
314
00:12:39,892 --> 00:12:41,659
That's the bottom
of the Sirena Deep.
315
00:12:42,261 --> 00:12:43,728
Incredible.
316
00:12:46,632 --> 00:12:48,533
[Victor] Surface, LF.
317
00:12:48,567 --> 00:12:52,270
Surface, life support good
at bottom.
318
00:12:52,304 --> 00:12:55,006
Repeat, at bottom.
319
00:13:00,446 --> 00:13:01,980
By the way, congratulations.
320
00:13:02,014 --> 00:13:03,681
First man
to descend the Sirena Deep.
321
00:13:03,716 --> 00:13:05,650
As are you.
322
00:13:05,684 --> 00:13:07,185
[Demetri] The sub is now
323
00:13:07,219 --> 00:13:10,155
under some of the most
extreme pressures on Earth.
324
00:13:12,291 --> 00:13:14,926
Victor and Alan
are the first humans
325
00:13:14,960 --> 00:13:17,662
to see this unexplored
landscape.
326
00:13:19,098 --> 00:13:21,800
Now they need to look
for communities of bacteria,
327
00:13:21,834 --> 00:13:23,568
the kind of extreme life
328
00:13:23,602 --> 00:13:26,137
that NASA might find
beyond our planet.
329
00:13:27,640 --> 00:13:29,207
[Lynne] Finding a microbe
330
00:13:29,241 --> 00:13:30,909
in the bottom
of the Mariana trench
331
00:13:30,943 --> 00:13:32,076
is important to me
332
00:13:32,111 --> 00:13:33,812
because deep
at the bottom of the ocean
333
00:13:33,846 --> 00:13:36,514
you don't have access
to sunlight
334
00:13:36,549 --> 00:13:39,350
and so these organisms
have to use
335
00:13:39,385 --> 00:13:42,654
some other source of energy
other than sunlight.
336
00:13:44,690 --> 00:13:46,491
[Demetri]
Some bacteria have developed
337
00:13:46,525 --> 00:13:49,527
to feed on chemicals seeping
from the Earth's crust,
338
00:13:49,562 --> 00:13:52,597
but none have been found
in these extreme depths.
339
00:13:54,166 --> 00:13:55,834
[Victor] What should
I be looking for?
340
00:13:55,868 --> 00:13:57,535
[Alan] You're looking
for bacterial mats
341
00:13:57,570 --> 00:13:58,837
of very distinct color.
342
00:13:58,871 --> 00:13:59,737
[Victor] What do they look like?
343
00:13:59,772 --> 00:14:01,639
[Alan] Some of them are white.
344
00:14:01,674 --> 00:14:04,242
Some of them are really
strikingly orange and yellow.
345
00:14:05,744 --> 00:14:07,011
Okay. Your eyes are outside,
346
00:14:07,046 --> 00:14:07,779
- I'm on the inside.
- [Alan] Yeah.
347
00:14:11,550 --> 00:14:13,551
[Victor] Been down here
two hours, fifteen minutes.
348
00:14:13,586 --> 00:14:15,253
- Already.
- Yeah.
349
00:14:15,287 --> 00:14:17,388
[Alan] How long do we have?
350
00:14:17,423 --> 00:14:19,824
Yeah, we're below 50%
on the batteries.
351
00:14:19,859 --> 00:14:20,592
Oh, [bleep].
352
00:14:22,895 --> 00:14:24,362
All right. stop, stop, stop.
353
00:14:25,431 --> 00:14:26,931
What is that.
354
00:14:26,966 --> 00:14:28,733
Woah, up, up, up, up up, up.
355
00:14:28,767 --> 00:14:31,536
What on Earth is that?
356
00:14:31,570 --> 00:14:32,804
[Victor]
Is that a bacterial mat?
357
00:14:32,838 --> 00:14:34,873
Look at that. Look, look.
358
00:14:34,907 --> 00:14:36,140
[Alan] Yep that's it!
359
00:14:36,175 --> 00:14:38,243
See the yellow?
360
00:14:38,277 --> 00:14:40,445
[Demetri] The yellow growth
on the rocks
361
00:14:40,479 --> 00:14:42,847
is in fact millions of bacteria
362
00:14:42,882 --> 00:14:43,982
feeding on chemicals
363
00:14:44,016 --> 00:14:45,917
seeping from the Earth's crust.
364
00:14:45,951 --> 00:14:48,820
And it's the deepest
ever observed.
365
00:14:48,854 --> 00:14:49,954
High five.
366
00:14:51,857 --> 00:14:54,592
[Alan] I knew
patience would reward us.
367
00:14:58,030 --> 00:14:59,731
[Demetri] The team
have visual evidence
368
00:14:59,765 --> 00:15:01,366
of the kind of extreme life
369
00:15:01,400 --> 00:15:03,468
that could exist in deep oceans
370
00:15:03,502 --> 00:15:05,737
elsewhere in our solar system.
371
00:15:05,771 --> 00:15:08,106
Now they need to bring back
a first-ever
372
00:15:08,140 --> 00:15:10,108
physical sample.
373
00:15:10,142 --> 00:15:12,977
[Victor] The current
is pushing us to the right,
374
00:15:13,012 --> 00:15:16,347
it's heading it's...
Woah! [bleep]
375
00:15:16,382 --> 00:15:17,782
[Demetri]
But now a strong current
376
00:15:17,816 --> 00:15:20,985
is making this delicate task
near impossible.
377
00:15:21,020 --> 00:15:23,321
[Victor] Flying a submarine
in a current with one hand
378
00:15:23,355 --> 00:15:25,590
and trying to get a rock
with a manipulator.
379
00:15:25,624 --> 00:15:27,125
This is really hard.
380
00:15:29,428 --> 00:15:31,162
Oh, my God,
my heart is going faster!
381
00:15:32,331 --> 00:15:33,064
Wow!
382
00:15:36,602 --> 00:15:37,802
Let's give it one more try.
383
00:15:40,272 --> 00:15:42,840
I got a [bleep] rock!
384
00:15:42,875 --> 00:15:44,575
I got a rock!
385
00:15:44,610 --> 00:15:46,444
I can't believe I got a rock!
386
00:15:52,184 --> 00:15:55,320
It fell apart... Damn it.
387
00:15:55,354 --> 00:15:58,790
[machine beeping]
388
00:15:58,824 --> 00:16:01,459
- [Alan] What was that?
- [Victor] The batteries.
389
00:16:01,493 --> 00:16:03,161
We have been here three hours.
390
00:16:04,229 --> 00:16:06,197
Okay. That's it, I tried.
391
00:16:07,633 --> 00:16:09,133
All right.
I'll drop the weights.
392
00:16:11,003 --> 00:16:13,171
Surfacing weight,
we're on our way.
393
00:16:14,573 --> 00:16:16,674
I'm sorry, I didn't
get a rock for you, doctor.
394
00:16:16,709 --> 00:16:18,242
I tried, I tried like hell.
395
00:16:22,414 --> 00:16:24,649
Surface, Surface, LF,
how do you read?
396
00:16:24,683 --> 00:16:26,117
[man] We got you, buddy,
we are on the hunt.
397
00:16:26,151 --> 00:16:28,853
[Demetri] The team failed
to obtain a rock sample,
398
00:16:28,887 --> 00:16:30,888
but as the sub
comes back on board,
399
00:16:30,923 --> 00:16:33,524
the crew make
a surprising discovery.
400
00:16:33,559 --> 00:16:35,560
[Shane] Holy [bleep].
401
00:16:43,902 --> 00:16:45,536
[Patrick] Nice and easy,
nice and easy.
402
00:16:45,571 --> 00:16:46,904
[Demetri]
After the first ever dive
403
00:16:46,939 --> 00:16:48,339
to the Sirena Deep,
404
00:16:48,374 --> 00:16:50,842
the team find an unexpected
piece of evidence
405
00:16:50,876 --> 00:16:53,411
inside one of the battery
compartments.
406
00:16:53,445 --> 00:16:55,279
[Patty] This is so cool
407
00:16:55,314 --> 00:16:56,848
that you guys
found this rock in here.
408
00:16:56,882 --> 00:16:58,316
Can you show me where?
409
00:16:58,350 --> 00:17:01,185
[Shane] Basically just down
in the bracket there.
410
00:17:01,220 --> 00:17:02,754
It was sitting on the flat spot.
411
00:17:02,788 --> 00:17:04,555
- Ah yep, that makes sense.
- Yeah.
412
00:17:04,590 --> 00:17:06,257
- Okay.
- Yeah.
413
00:17:06,291 --> 00:17:07,959
The mud got us thinking,
let's keep an eye out.
414
00:17:07,993 --> 00:17:09,861
[Patty] This is great.
415
00:17:09,895 --> 00:17:10,995
What a find.
416
00:17:11,030 --> 00:17:13,231
This is the first rock
417
00:17:13,265 --> 00:17:16,234
that has been recovered
in the Sirena Deep.
418
00:17:20,005 --> 00:17:23,074
[Demetri] Microscopic
analysis of the rock surface
419
00:17:23,108 --> 00:17:25,376
shows intricate
bacterial growth.
420
00:17:25,411 --> 00:17:27,745
[Lynne] For us
as astrobiologists,
421
00:17:27,780 --> 00:17:31,015
to know that there is life
deep in the ocean,
422
00:17:31,050 --> 00:17:33,751
gives us confidence
when we start to look
423
00:17:33,819 --> 00:17:35,953
at other places
in our solar system,
424
00:17:35,988 --> 00:17:39,490
that there are organisms
that can survive
425
00:17:39,525 --> 00:17:42,393
on another planet
without sunlight,
426
00:17:42,428 --> 00:17:44,729
and live
under very high pressures.
427
00:17:44,763 --> 00:17:46,264
At least we know it's possible
428
00:17:46,298 --> 00:17:48,099
and it's worth going looking.
429
00:17:52,604 --> 00:17:54,939
Wait. Hold on a minute.
I'm gonna grab that line.
430
00:17:54,973 --> 00:17:57,708
[Demetri] But now the team
discover a problem
431
00:17:57,743 --> 00:17:59,877
that could jeopardize
any further dives
432
00:17:59,912 --> 00:18:01,879
into the Mariana Trench.
433
00:18:01,914 --> 00:18:04,649
One of the three
navigational probes,
434
00:18:04,683 --> 00:18:07,852
called 'landers', is missing.
435
00:18:07,886 --> 00:18:10,822
Alan said that the one
of them is still not
436
00:18:10,856 --> 00:18:12,256
on its way up.
437
00:18:12,291 --> 00:18:13,858
That means it must be stuck.
438
00:18:13,892 --> 00:18:15,626
[Patrick] [bleep] me, man.
439
00:18:15,661 --> 00:18:18,763
[bleep] lander
stuck in the mud down there.
440
00:18:18,797 --> 00:18:20,531
Bad news, man.
441
00:18:23,569 --> 00:18:25,169
You know what you've got
to do, don't you?
442
00:18:25,204 --> 00:18:27,872
- [Victor] Go down and get it?
- [Alan] Yeah.
443
00:18:27,906 --> 00:18:30,374
[Demetri] To save the mission
they must risk
444
00:18:30,409 --> 00:18:32,977
an unprecedented
deep-sea rescue.
445
00:18:34,580 --> 00:18:36,681
[Rob] If we are able
to actually rendezvous
446
00:18:36,715 --> 00:18:39,117
with a dead target.
447
00:18:39,151 --> 00:18:41,686
We are attempting
the deepest salvage operation
448
00:18:41,720 --> 00:18:42,987
that's ever been attempted
by man.
449
00:18:43,021 --> 00:18:44,822
So, no pressure.
450
00:18:44,857 --> 00:18:47,592
The big challenge
is to find the lander
451
00:18:47,626 --> 00:18:49,026
that has now ran out of battery
452
00:18:49,061 --> 00:18:52,196
so it's not able
to signal to us where it is.
453
00:18:52,231 --> 00:18:54,599
Once we find it,
uh, with the sub
454
00:18:54,633 --> 00:18:57,702
the sub will need
to either work it loose
455
00:18:57,736 --> 00:19:00,705
by using the manipulator
to free it.
456
00:19:00,739 --> 00:19:03,141
If it needs to remove
the weight from the bottom
457
00:19:03,175 --> 00:19:05,710
it will need to put the
manipulator arm in underneath
458
00:19:05,744 --> 00:19:08,045
and cut the wire
that's attaching the weight
459
00:19:08,080 --> 00:19:09,647
to the lander itself.
460
00:19:13,218 --> 00:19:15,586
[Demetri] At the helm
of this risky operation,
461
00:19:15,621 --> 00:19:18,422
Victor puts one of the most
experienced sub pilots
462
00:19:18,457 --> 00:19:20,858
in the world, the builder
of the sub itself,
463
00:19:20,893 --> 00:19:23,161
- Patrick Lahey.
- [Patrick] If we find it
464
00:19:23,195 --> 00:19:24,795
we are going to try
and get it off the bottom.
465
00:19:24,830 --> 00:19:27,765
You know, whatever it takes
we'll release it.
466
00:19:29,668 --> 00:19:31,669
[Demetri] But grappling
with the lost lander
467
00:19:31,703 --> 00:19:33,871
holds a terrifying danger
468
00:19:33,906 --> 00:19:36,908
of the sub itself getting
trapped irretrievably
469
00:19:36,942 --> 00:19:38,509
on the seabed.
470
00:19:38,544 --> 00:19:41,612
[Patrick] The thing you worry
about is entanglement.
471
00:19:41,647 --> 00:19:43,781
You have to be vigilant
as a pilot, you have
472
00:19:43,815 --> 00:19:46,217
to be to paying attention
of your surroundings.
473
00:19:46,251 --> 00:19:48,719
- All right, McGee...
- [Kelvin] Get it done buddy,
474
00:19:48,754 --> 00:19:50,254
- get it done, get it done.
- Thank you. All right.
475
00:19:50,289 --> 00:19:52,223
[Patrick] Bring us home
safe buddy, thank you!
476
00:19:52,257 --> 00:19:53,257
- Thank you, Frank.
- [Jonathan] Okay.
477
00:19:53,292 --> 00:19:54,659
I'm getting ready.
478
00:19:54,693 --> 00:19:56,827
See you later.
479
00:19:56,862 --> 00:19:58,362
[Demetri] Accompanying Patrick
480
00:19:58,397 --> 00:20:00,631
is deep ocean
submarine specialist,
481
00:20:00,666 --> 00:20:02,500
Jonathan Struwe.
482
00:20:02,534 --> 00:20:04,135
[Victor] It's really dark
and deep
483
00:20:04,169 --> 00:20:06,971
and difficult down there
to navigate.
484
00:20:07,005 --> 00:20:08,272
I just hope they find it.
485
00:20:08,307 --> 00:20:10,441
What an accomplishment
that would be.
486
00:20:10,475 --> 00:20:12,710
- Let's have a good dive.
- Let's have a good dive.
487
00:20:18,483 --> 00:20:20,318
[Victor] They're a long way
from home down there.
488
00:20:21,486 --> 00:20:23,087
And you feel it, I tell ya.
489
00:20:31,263 --> 00:20:32,296
Let's launch the sonar.
490
00:20:33,432 --> 00:20:34,832
I am going to go ahead,
I'm going to increase
491
00:20:34,866 --> 00:20:36,334
the scanning speed.
492
00:20:36,368 --> 00:20:38,436
[Demetri] Once on the bottom,
they start the search
493
00:20:38,470 --> 00:20:41,138
for the lost lander,
codenamed "Skaff".
494
00:20:41,173 --> 00:20:43,708
Oh, yeah. That's something.
495
00:20:43,742 --> 00:20:45,676
So, we are two meters off
the bottom.
496
00:20:46,812 --> 00:20:48,879
We'll get you Skaff, careful.
497
00:20:50,182 --> 00:20:51,749
[Demetri] They use
the sub's sonar
498
00:20:51,783 --> 00:20:53,718
to ping the surrounding
landscape
499
00:20:53,752 --> 00:20:55,886
in the hope of a return echo.
500
00:20:55,921 --> 00:20:57,321
Here you go,
501
00:20:57,356 --> 00:20:59,056
now it should be in your window.
502
00:21:00,158 --> 00:21:02,126
Just a second and it'll be
in your window.
503
00:21:05,998 --> 00:21:08,399
There. You can see him.
504
00:21:08,433 --> 00:21:09,634
[Patrick] Oh yeah, here we go.
505
00:21:09,668 --> 00:21:11,802
[Jonathan] Skaff.
506
00:21:11,837 --> 00:21:13,104
There we are.
507
00:21:14,473 --> 00:21:16,240
[Patrick] Okay. We are on it.
508
00:21:16,275 --> 00:21:18,409
[Jonathan] Yeah. No. It's...
509
00:21:18,443 --> 00:21:19,944
-It's ahead of us
-[Patrick] Yeah,
510
00:21:19,978 --> 00:21:21,212
- dead ahead of us.
- [Jonathan] It is dead ahead
511
00:21:21,246 --> 00:21:23,191
of us.
512
00:21:23,215 --> 00:21:25,249
Yeah, get right over there,
513
00:21:25,284 --> 00:21:26,717
get the lights on it.
514
00:21:26,752 --> 00:21:29,153
[Jonathan] There we are.
515
00:21:29,187 --> 00:21:31,400
[Demetri] Having landed
at an awkward angle,
516
00:21:31,424 --> 00:21:34,325
one corner of its base
is wedged in the sediment.
517
00:21:36,662 --> 00:21:38,829
Jonathan must now work
the robotic arm
518
00:21:38,864 --> 00:21:40,498
to release it.
519
00:21:43,035 --> 00:21:46,470
This is the most dangerous
part of the operation.
520
00:21:48,440 --> 00:21:50,975
Ah [bleep], what's going here?
521
00:21:54,112 --> 00:21:56,981
Index again
and try to straighten out.
522
00:21:57,015 --> 00:21:59,950
Try, try, try doing that.
523
00:21:59,985 --> 00:22:01,585
[Jonathan]
I can't, for some reason.
524
00:22:04,189 --> 00:22:05,489
Ah.
525
00:22:08,226 --> 00:22:09,627
[Patrick] Okay allow me
just to come ahead
526
00:22:09,661 --> 00:22:10,661
I'm going to push you.
527
00:22:10,696 --> 00:22:12,430
Yeah. I am going to push
the lander.
528
00:22:13,899 --> 00:22:15,966
[Demetri] If the arm gets
entangled with the lander,
529
00:22:16,001 --> 00:22:18,035
and the emergency
arm-release fails,
530
00:22:18,070 --> 00:22:20,771
they could be trapped
beyond any hope of rescue.
531
00:22:21,973 --> 00:22:23,474
Back up just a little bit.
532
00:22:25,877 --> 00:22:27,912
Let's get
into the right position.
533
00:22:27,946 --> 00:22:30,948
[dramatic music playing]
534
00:22:37,789 --> 00:22:38,923
What was that?
535
00:22:48,033 --> 00:22:49,800
[Demetri] Patrick
and Jonathan are attempting
536
00:22:49,835 --> 00:22:53,237
a daring rescue mission
seven miles under water.
537
00:22:54,239 --> 00:22:56,140
[Patrick]
Get into the right position.
538
00:22:56,174 --> 00:22:58,209
[Demetri] One wrong move
and the sub
539
00:22:58,243 --> 00:23:00,711
could get snagged
on the trapped lander.
540
00:23:05,951 --> 00:23:07,318
[Jonathan] He's going up!
541
00:23:07,352 --> 00:23:08,619
We hit him.
542
00:23:08,653 --> 00:23:10,020
He's on his way!
543
00:23:10,055 --> 00:23:12,490
Aaah! [laughs]
544
00:23:12,524 --> 00:23:14,091
Patrick! [laughs]
545
00:23:14,993 --> 00:23:16,093
Woooh!
546
00:23:16,128 --> 00:23:18,396
[Patrick] Surface, LF,
547
00:23:18,430 --> 00:23:21,132
the lander has released
548
00:23:21,166 --> 00:23:22,867
[cheering]
549
00:23:22,901 --> 00:23:25,069
[Victor] This is the deepest
550
00:23:25,103 --> 00:23:28,639
maritime salvage operation
ever attempted.
551
00:23:28,673 --> 00:23:30,074
And to say that we actually had
552
00:23:30,108 --> 00:23:32,376
a marine lander trapped
on the bottom
553
00:23:32,411 --> 00:23:37,181
and then sent two men
submersible to the bottom,
554
00:23:37,215 --> 00:23:38,883
found it and released,
555
00:23:38,917 --> 00:23:41,152
it is simply a technological
tour deforce.
556
00:23:41,186 --> 00:23:43,721
It's extraordinary. I am
so proud of the entire team.
557
00:23:49,194 --> 00:23:51,462
[chuckles]
558
00:23:51,496 --> 00:23:53,497
[Demetri] With all
three landers on board,
559
00:23:53,532 --> 00:23:55,065
the crew is now getting ready
560
00:23:55,100 --> 00:23:57,268
for the deepest dive
on the planet.
561
00:23:58,904 --> 00:24:00,438
And the scanning team has made
562
00:24:00,472 --> 00:24:03,107
a ground-breaking new discovery.
563
00:24:03,141 --> 00:24:04,875
Their high-resolution data
564
00:24:04,910 --> 00:24:06,944
reveals a location
on this planet
565
00:24:06,978 --> 00:24:09,213
that's deeper
than any found before.
566
00:24:10,215 --> 00:24:12,783
[Cassie] We estimate
to be 10,920.
567
00:24:12,818 --> 00:24:15,853
Plus or minus 15 to 20 meters.
568
00:24:15,887 --> 00:24:19,423
[Demetri] At nearly
36,000 feet deep,
569
00:24:19,458 --> 00:24:22,359
it's a staggering 117 times
570
00:24:22,394 --> 00:24:25,196
the height of the Statue
of Liberty.
571
00:24:25,230 --> 00:24:27,431
If Victor is successful
in his mission,
572
00:24:27,466 --> 00:24:29,633
he will become
the deepest-diving man
573
00:24:29,668 --> 00:24:31,168
in history.
574
00:24:32,871 --> 00:24:34,138
[Victor] We're going
to be assaulting
575
00:24:34,172 --> 00:24:35,973
the challenger deep
with more technology
576
00:24:36,007 --> 00:24:37,341
and more capability than anyone
577
00:24:37,375 --> 00:24:38,976
has ever done in history.
578
00:24:39,010 --> 00:24:40,945
We have the most advanced
sonar in the world
579
00:24:40,979 --> 00:24:43,147
and we have a submarine
with a two-person
580
00:24:43,181 --> 00:24:45,783
titanium sphere
that can do multiple dives.
581
00:24:45,817 --> 00:24:47,451
No one had this before.
582
00:24:47,486 --> 00:24:48,919
One, two, three.
583
00:24:53,058 --> 00:24:55,526
[Demetri] This will be
the sub's ultimate test.
584
00:24:57,729 --> 00:24:59,830
[Victor] The challenger deep
here in the Mariana trench
585
00:24:59,865 --> 00:25:01,999
is the mount Everest
of deep ocean diving.
586
00:25:04,436 --> 00:25:07,404
The pressure is 16,000 psi.
587
00:25:07,439 --> 00:25:09,039
The viewports they compress
588
00:25:09,074 --> 00:25:10,140
almost a quarter of an inch
589
00:25:10,175 --> 00:25:11,475
under that intense pressure.
590
00:25:11,510 --> 00:25:12,643
[Patrick] Ready for Victor.
591
00:25:12,677 --> 00:25:14,245
500 meters from the site.
592
00:25:14,279 --> 00:25:17,114
[Victor] It's three
and a half to four hours
593
00:25:17,148 --> 00:25:20,518
- down and up.
- Have a great dive Victor.
594
00:25:20,552 --> 00:25:23,087
[Victor] So it stresses every
part of the submersible.
595
00:25:23,989 --> 00:25:25,723
Good luck to us all.
596
00:25:25,757 --> 00:25:28,125
What's really worrying is that
597
00:25:28,159 --> 00:25:29,994
something might not work.
598
00:25:30,028 --> 00:25:32,596
[Demetri] If something
serious goes wrong,
599
00:25:32,631 --> 00:25:35,132
Victor is on his own,
where no other craft
600
00:25:35,166 --> 00:25:36,834
can possibly reach him.
601
00:25:42,073 --> 00:25:43,607
[Tim] Sub's clear!
602
00:25:46,511 --> 00:25:47,912
All comes down to this
603
00:25:47,946 --> 00:25:51,115
after 4 years of planning,
building, testing, diving,
604
00:25:51,149 --> 00:25:52,583
this is the big one.
605
00:25:52,617 --> 00:25:55,619
[dramatic music playing]
606
00:26:01,660 --> 00:26:03,561
[Kelvin] Fantastic,
have a good one Victor.
607
00:26:05,363 --> 00:26:07,031
[Victor] Thank you. See you
all on the other side.
608
00:26:08,066 --> 00:26:09,433
Let's get the oxygen
going here...
609
00:26:12,337 --> 00:26:15,005
[Demetri] To keep Victor
alive deep under the water,
610
00:26:15,040 --> 00:26:17,074
the sub is equipped
with enough oxygen
611
00:26:17,108 --> 00:26:19,510
to last for 4 days,
612
00:26:19,544 --> 00:26:22,046
but the carbon dioxide
Victor exhales
613
00:26:22,080 --> 00:26:23,747
could be lethal.
614
00:26:23,782 --> 00:26:26,717
So two high-tech devices
called "scrubbers",
615
00:26:26,751 --> 00:26:28,452
packed with absorbent materials,
616
00:26:28,486 --> 00:26:31,055
work relentlessly
to keep the carbon dioxide
617
00:26:31,089 --> 00:26:33,023
below dangerous limits.
618
00:26:38,430 --> 00:26:42,733
[Victor] Surface,
LF present depth, 833.
619
00:26:42,767 --> 00:26:46,437
Heading 045.
620
00:26:46,471 --> 00:26:49,273
- Life support good.
- [Patrick] Roger LF,
621
00:26:49,307 --> 00:26:51,575
understand life support good,
622
00:26:51,610 --> 00:26:53,510
we have you loud
and clear, Victor.
623
00:26:57,882 --> 00:26:59,283
[Victor] You can hear the
outside of the sub creaking
624
00:26:59,317 --> 00:27:01,018
just a little bit
as it just kind of settles in.
625
00:27:02,320 --> 00:27:04,421
[Demetri] Every 60 seconds,
the pressure
626
00:27:04,456 --> 00:27:07,891
on the sub increases
by 400 tons.
627
00:27:07,926 --> 00:27:09,760
The equivalent of one jumbo jet
628
00:27:09,794 --> 00:27:11,996
added on top of it every minute.
629
00:27:14,099 --> 00:27:15,966
Victor is aiming for a lander,
630
00:27:16,001 --> 00:27:18,569
located in the deepest part
of the trench.
631
00:27:18,603 --> 00:27:20,504
He will then ping the other two
632
00:27:20,538 --> 00:27:23,107
to determine his exact
position on the seabed.
633
00:27:24,743 --> 00:27:27,177
My three companion robots
are probably
634
00:27:27,212 --> 00:27:28,412
on the bottom now.
635
00:27:32,884 --> 00:27:35,886
[beeping sound]
636
00:27:37,055 --> 00:27:39,189
[Tom] All right. Patrick,
we've got an issue.
637
00:27:39,224 --> 00:27:41,191
Lander on the way up.
638
00:27:42,327 --> 00:27:43,627
[Demetri] The release mechanism
639
00:27:43,662 --> 00:27:45,929
on one of the landers
has triggered early
640
00:27:45,964 --> 00:27:48,899
and it is now hurtling up
under the sub.
641
00:27:48,933 --> 00:27:52,603
Captain be advised,
we appear to have a situation.
642
00:27:52,637 --> 00:27:55,439
The lander has left
the bottom unexpectedly.
643
00:27:55,473 --> 00:27:58,442
At this time
just about 400 meters
644
00:27:58,476 --> 00:28:01,378
below Victor and on its way up.
645
00:28:04,783 --> 00:28:07,885
That's weird,
the lander is closer to 'em.
646
00:28:07,919 --> 00:28:09,386
Wrong reading?
647
00:28:11,022 --> 00:28:12,823
Something wrong with its modem?
648
00:28:14,592 --> 00:28:16,393
LF, LF.
649
00:28:16,428 --> 00:28:17,528
LF.
650
00:28:17,562 --> 00:28:19,463
Roger, go ahead.
651
00:28:19,497 --> 00:28:20,831
Be advised,
652
00:28:20,865 --> 00:28:23,233
lander has left bottom.
653
00:28:23,268 --> 00:28:25,169
Has left bottom.
654
00:28:26,705 --> 00:28:29,807
[Victor] Oh [bleep]
there is a collision risk.
655
00:28:31,443 --> 00:28:33,410
I mean, I'm going down
right on top of it.
656
00:28:35,280 --> 00:28:36,447
Hope it doesn't hit me.
657
00:28:37,582 --> 00:28:39,083
[Demetri] If there's
a collision,
658
00:28:39,117 --> 00:28:41,251
it could rupture
mission-critical components
659
00:28:41,286 --> 00:28:42,686
of the sub.
660
00:28:46,391 --> 00:28:49,793
[Patrick] They are not even
200 meters apart now.
661
00:28:49,828 --> 00:28:52,429
Hundred and fifty meters apart.
662
00:28:52,464 --> 00:28:53,864
They are hundred meters apart.
663
00:28:55,266 --> 00:28:57,000
- Within 50 meters.
- [Victor] [bleep]
664
00:29:08,446 --> 00:29:10,881
[Demetri] On his way down to
the deepest place on earth,
665
00:29:10,915 --> 00:29:12,883
Victor is in danger of crashing
666
00:29:12,917 --> 00:29:15,152
into one of his own
robotic landers,
667
00:29:15,186 --> 00:29:16,920
now heading up beneath the sub.
668
00:29:16,955 --> 00:29:19,490
[static radio]
669
00:29:19,524 --> 00:29:21,825
[Demetri] If Victor collides
with the lander,
670
00:29:21,860 --> 00:29:24,361
it could be the end
of the mission.
671
00:29:24,395 --> 00:29:26,597
I've always worried
about mid-air collisions
672
00:29:26,631 --> 00:29:28,565
as a pilot, but I never
thought I could have
673
00:29:28,633 --> 00:29:31,101
that deep in the Mariana Trench.
674
00:29:32,237 --> 00:29:33,570
[Patrick] Within 50 meters.
675
00:29:35,540 --> 00:29:37,875
I am certainly not gonna be
jamming thrusters down.
676
00:29:37,909 --> 00:29:38,842
I don't want to run into him.
677
00:29:40,378 --> 00:29:42,780
[Patrick] They're probably
very close to one another.
678
00:29:42,814 --> 00:29:45,816
[dramatic music playing]
679
00:29:50,054 --> 00:29:53,056
[Victor indistinct on radio]
680
00:29:56,327 --> 00:29:57,795
[Patrick] It's above him.
681
00:30:01,766 --> 00:30:03,634
[Victor] Yep, looks like
it has passed me.
682
00:30:05,870 --> 00:30:07,704
Strange things happen
down at this depth.
683
00:30:11,476 --> 00:30:14,745
Woah, seeing 10,000 meters
is pretty interesting.
684
00:30:14,779 --> 00:30:15,913
That's a big number.
685
00:30:17,081 --> 00:30:18,715
Can't help but to be
a little bit nervous.
686
00:30:20,285 --> 00:30:21,552
[Demetri] The sub is now under
687
00:30:21,586 --> 00:30:23,821
the greatest pressure
in our oceans.
688
00:30:23,855 --> 00:30:26,623
Equivalent to having
the largest aircraft carrier
689
00:30:26,658 --> 00:30:28,826
in the world sat on top of it.
690
00:30:30,295 --> 00:30:32,296
[Victor] Altimeter is at 237.
691
00:30:33,531 --> 00:30:34,865
Looking out the portal
just make sure
692
00:30:34,933 --> 00:30:37,701
that I don't slam
in the bottom here.
693
00:30:37,735 --> 00:30:40,737
[dramatic music playing]
694
00:30:44,809 --> 00:30:46,710
Thirty-four meters to go.
695
00:30:46,744 --> 00:30:48,145
Should start coming into view...
696
00:30:49,614 --> 00:30:52,583
Come on. So close.
697
00:30:58,056 --> 00:30:59,890
Eighteen meters.
698
00:30:59,924 --> 00:31:02,993
[dramatic music playing]
699
00:31:04,996 --> 00:31:06,296
I can see the bottom
on my display,
700
00:31:06,331 --> 00:31:07,364
there's the brown of the bottom.
701
00:31:15,506 --> 00:31:16,707
Touchdown.
702
00:31:16,741 --> 00:31:19,743
[dramatic music playing]
703
00:31:23,348 --> 00:31:26,617
There is the bottom
of the entire ocean.
704
00:31:31,656 --> 00:31:33,357
Surface LF,
705
00:31:33,391 --> 00:31:35,058
at bottom.
706
00:31:35,093 --> 00:31:38,295
[cheers and applause]
707
00:31:38,329 --> 00:31:40,631
Congratulations Victor,
congratulations.
708
00:31:41,866 --> 00:31:44,568
[Victor] Congratulations
to you all.
709
00:31:44,602 --> 00:31:48,572
[Demetri] Victor is now
35,843 feet
710
00:31:48,606 --> 00:31:51,341
below the surface,
deeper than anyone else
711
00:31:51,376 --> 00:31:53,277
before him.
712
00:31:53,311 --> 00:31:55,145
Beginning exploration
of the bottom.
713
00:32:01,019 --> 00:32:03,020
Outstanding. What a moment...
714
00:32:05,390 --> 00:32:08,025
Wow, it's so soft.
715
00:32:08,059 --> 00:32:10,894
In some respects this is
such an alien environment.
716
00:32:10,929 --> 00:32:12,095
Eleven thousand meters down,
717
00:32:12,130 --> 00:32:15,299
16000 PSI, no light.
718
00:32:15,333 --> 00:32:17,034
This is almost like
an alien world.
719
00:32:20,872 --> 00:32:23,106
Oh, wow, wow, what's that guy?
720
00:32:23,141 --> 00:32:25,676
Whoa, whoa, we've got to go
back and check that out.
721
00:32:25,710 --> 00:32:28,278
That looked like something
really interesting.
722
00:32:28,313 --> 00:32:30,447
Who are you little guy?
723
00:32:31,849 --> 00:32:33,450
What in the hell are you?
724
00:32:33,484 --> 00:32:37,321
You're like a...
a jellyfish snake.
725
00:32:37,355 --> 00:32:40,691
[Demetri] This sea cucumber
uses its transparent tube
726
00:32:40,725 --> 00:32:43,560
feet to forage for food
in these crushing depths.
727
00:32:44,796 --> 00:32:46,129
Definitely some life down here.
728
00:32:46,164 --> 00:32:47,931
I saw it with my own eyes.
729
00:32:49,901 --> 00:32:51,234
[Demetri] During
their operations
730
00:32:51,269 --> 00:32:54,171
below 13,000 feet
in the Mariana Trench,
731
00:32:54,205 --> 00:32:56,139
the science team
has gathered footage
732
00:32:56,174 --> 00:32:57,975
of even stranger animals.
733
00:33:02,347 --> 00:33:04,648
- Look at that.
- [Johanna] That is cool.
734
00:33:06,117 --> 00:33:08,652
[Alan] This fish is a cusk eel.
735
00:33:08,686 --> 00:33:10,187
What makes this one
really interesting
736
00:33:10,221 --> 00:33:11,822
is that it has
a transparent head
737
00:33:11,856 --> 00:33:13,557
made of a gel like substance.
738
00:33:13,591 --> 00:33:14,958
It's almost certainly
a new species.
739
00:33:16,394 --> 00:33:18,261
- Well, that's not a fish.
- [Joanna] I know.
740
00:33:18,296 --> 00:33:19,529
What the hell is that?
741
00:33:22,233 --> 00:33:23,767
This animal that is
drifting past the camera
742
00:33:23,801 --> 00:33:25,535
is a colony or collection
743
00:33:25,570 --> 00:33:27,237
of lots of little small animals.
744
00:33:27,271 --> 00:33:28,939
It's kind of like a jellyfish
745
00:33:28,973 --> 00:33:30,540
but there is lots of,
if you imagine thousands
746
00:33:30,575 --> 00:33:32,009
of little jellyfish
holding it together,
747
00:33:32,043 --> 00:33:33,643
and we call that a siphonophore.
748
00:33:38,783 --> 00:33:40,083
[Johanna] Oh,
that's a really good shot.
749
00:33:40,118 --> 00:33:41,251
[Alan] I would say
that's the best video
750
00:33:41,285 --> 00:33:42,819
of a snailfish we've ever got.
751
00:33:44,856 --> 00:33:47,391
The Mariana snailfish
is quite an iconic fish.
752
00:33:49,227 --> 00:33:51,795
These fish are right
on the absolute limit
753
00:33:51,829 --> 00:33:55,399
of what all fish
in the world can cope with.
754
00:33:55,433 --> 00:33:56,566
If they were to go any deeper
755
00:33:56,601 --> 00:33:57,734
than where we have seen them
756
00:33:57,769 --> 00:34:01,571
their cells would start
to implode.
757
00:34:01,605 --> 00:34:02,839
[Demetri] It is a rare glimpse
758
00:34:02,874 --> 00:34:05,208
of the elusive creatures
of the deep,
759
00:34:05,243 --> 00:34:08,845
but soon Victor makes
a more disturbing discovery.
760
00:34:10,882 --> 00:34:12,249
[Victor] What the hell is that?
761
00:34:13,918 --> 00:34:15,318
I saw something that looked like
762
00:34:15,353 --> 00:34:18,455
a triangle and nature
doesn't do straight edges,
763
00:34:18,489 --> 00:34:19,890
they don't do straight lines,
764
00:34:19,924 --> 00:34:21,258
and I saw something
that looked like
765
00:34:21,292 --> 00:34:24,161
a piece of refuse.
766
00:34:24,195 --> 00:34:26,863
[Demetri] Close examination
reveals what appears
767
00:34:26,898 --> 00:34:28,432
to be a letter "S",
768
00:34:28,466 --> 00:34:30,934
evidence of the
unstoppable impact
769
00:34:30,968 --> 00:34:32,269
of human pollution.
770
00:34:32,303 --> 00:34:34,905
[Victor] It's unfortunate
that even there
771
00:34:34,939 --> 00:34:37,007
at the very bottom of the ocean,
772
00:34:37,041 --> 00:34:39,843
that there is, you know,
contamination of some kind.
773
00:34:42,980 --> 00:34:45,015
[Demetri] Victor
has broken a record,
774
00:34:45,049 --> 00:34:47,784
but extreme conditions
are taking their toll.
775
00:34:47,819 --> 00:34:50,353
I've been here for 4 hours.
776
00:34:50,388 --> 00:34:52,722
We're running out of power.
777
00:34:52,757 --> 00:34:54,891
Challenger Deep.
778
00:34:54,926 --> 00:34:57,027
Let's go home.
779
00:34:57,061 --> 00:34:58,595
Surface weight release.
780
00:34:58,629 --> 00:35:00,330
Here we go.
781
00:35:00,364 --> 00:35:01,865
Like a moon launch.
782
00:35:05,236 --> 00:35:06,903
[beeping sound]
783
00:35:09,407 --> 00:35:11,374
What was that? That's a new one.
784
00:35:14,612 --> 00:35:16,113
Well that ain't good.
785
00:35:19,984 --> 00:35:22,152
It looks like we've got
a big battery fault, yeah.
786
00:35:24,689 --> 00:35:26,123
I wonder if I hit something
on the bottom
787
00:35:26,157 --> 00:35:28,492
that might have caused an issue.
788
00:35:34,866 --> 00:35:36,766
Oh, that's great.
789
00:35:36,801 --> 00:35:38,502
Now everything is black in here.
790
00:35:39,370 --> 00:35:41,371
[dramatic music playing]
791
00:35:42,840 --> 00:35:44,541
My heart rate is up
a little bit.
792
00:35:47,912 --> 00:35:51,882
Surface, LF has lost power,
793
00:35:51,916 --> 00:35:55,085
is on emergency
battery power only.
794
00:35:55,119 --> 00:35:58,088
Do not have good communication.
795
00:35:58,122 --> 00:36:01,191
[Patrick] Roger, understand,
we will track you
796
00:36:01,225 --> 00:36:03,226
from the surface.
797
00:36:03,261 --> 00:36:05,061
[Demetri] Still three hours
from the surface
798
00:36:05,096 --> 00:36:07,364
and with no main battery supply,
799
00:36:07,398 --> 00:36:10,066
the sub's systems
start shutting down.
800
00:36:11,002 --> 00:36:12,869
First goes the heating
801
00:36:12,904 --> 00:36:14,571
and the temperature
quickly drops
802
00:36:14,605 --> 00:36:16,072
to near freezing.
803
00:36:16,107 --> 00:36:17,807
Got my warm gloves.
804
00:36:17,842 --> 00:36:19,176
[Demetri] But things
are about to get
805
00:36:19,210 --> 00:36:20,710
far more serious...
806
00:36:20,745 --> 00:36:21,878
[beeping sound]
807
00:36:21,913 --> 00:36:24,548
CO2 alarm 0.5.
808
00:36:24,582 --> 00:36:26,383
[Demetri] Normal
carbon dioxide levels
809
00:36:26,417 --> 00:36:30,487
in the air are 0.04%.
810
00:36:30,521 --> 00:36:33,290
In the sub they are now
rising rapidly.
811
00:36:33,324 --> 00:36:35,625
[tense music playing]
812
00:36:35,660 --> 00:36:38,595
[static radio]
813
00:36:38,629 --> 00:36:41,064
CO2 is 0.72? Is it?
814
00:36:41,098 --> 00:36:43,233
[Demetri] Every breath
Victor takes
815
00:36:43,267 --> 00:36:45,702
releases more toxic
carbon dioxide
816
00:36:45,736 --> 00:36:47,771
into a sealed environment.
817
00:36:47,805 --> 00:36:49,706
If the levels keep rising,
818
00:36:49,740 --> 00:36:51,208
Victor may not have long
819
00:36:51,242 --> 00:36:53,176
before he loses consciousness.
820
00:37:05,556 --> 00:37:07,857
[dramatic music playing]
821
00:37:07,892 --> 00:37:09,993
[Steve] Still 40 minutes
from the surface,
822
00:37:10,027 --> 00:37:12,262
carbon dioxide levels
inside the sub
823
00:37:12,296 --> 00:37:14,431
are reaching alarming levels.
824
00:37:15,900 --> 00:37:17,200
[beeping sound]
825
00:37:17,235 --> 00:37:20,036
The CO2 is rising rapidly.
826
00:37:20,071 --> 00:37:23,073
At 1% CO2 you start
to feel ill effects,
827
00:37:23,107 --> 00:37:25,675
at 2% I believe you pass out.
828
00:37:25,710 --> 00:37:27,677
[Demetri] If the levels
keep rising,
829
00:37:27,712 --> 00:37:30,313
Victor might not reach
the surface in time.
830
00:37:30,348 --> 00:37:32,349
0.5 is the alarm condition.
831
00:37:33,317 --> 00:37:35,619
LF, what is your O2 reading?
832
00:37:36,654 --> 00:37:39,723
Confirm, both scrubbers
are running?
833
00:37:43,261 --> 00:37:46,062
You do have
a secondary analox unit
834
00:37:46,097 --> 00:37:47,530
you can power that up.
835
00:37:47,565 --> 00:37:50,533
[tense music playing]
836
00:37:55,106 --> 00:37:57,073
[Patrick] LF,
what is your reading?
837
00:37:59,710 --> 00:38:03,346
Control be advised
CO2 level 0.32.
838
00:38:05,983 --> 00:38:09,819
Roger. Say again,
say again your last Victor.
839
00:38:09,854 --> 00:38:12,422
[static radio]
840
00:38:12,456 --> 00:38:14,824
Control be advised, CO2 level
841
00:38:14,859 --> 00:38:16,893
back down to 0.32.
842
00:38:19,697 --> 00:38:21,631
Roger that, okay man,
843
00:38:21,666 --> 00:38:23,199
will see you on the surface.
844
00:38:24,635 --> 00:38:27,203
[Demetri] 12 hours since
his early morning launch,
845
00:38:27,238 --> 00:38:30,640
Victor returns from
the deepest place on earth.
846
00:38:30,675 --> 00:38:33,276
[Rob] LF, this is Xeno,
welcome back, Victor.
847
00:38:34,078 --> 00:38:35,645
[Tim] Swimmer in the water!
848
00:38:41,585 --> 00:38:44,287
[Rob] LF, LF Xeno This is Xeno.
849
00:38:45,523 --> 00:38:47,257
Yeah, Victor,
we are taking the odd wave
850
00:38:47,291 --> 00:38:50,760
across the top of the sub,
if you could thrust up.
851
00:38:50,795 --> 00:38:51,895
[Victor] Surface, be advised,
852
00:38:51,929 --> 00:38:53,430
using thrusters overloaded
853
00:38:53,464 --> 00:38:56,299
my remaining batteries,
batteries are dead.
854
00:38:56,334 --> 00:38:57,667
[Demetri] With no power left,
855
00:38:57,702 --> 00:38:59,636
the sub can't fully resurface.
856
00:38:59,670 --> 00:39:02,105
Swimmer Tim once more
has to put his body
857
00:39:02,139 --> 00:39:04,107
- on the line.
- [Tim] I got it, back away
858
00:39:04,141 --> 00:39:05,575
[man speaking indistinctly]
859
00:39:06,944 --> 00:39:08,878
[man] Okay.
Standby with the handrail.
860
00:39:08,913 --> 00:39:10,747
[Patrick] Keep an eye
on that towline, boys.
861
00:39:14,185 --> 00:39:15,819
[Tim] Towline has come loose!
862
00:39:15,853 --> 00:39:17,454
Towline has come loose!
863
00:39:19,957 --> 00:39:21,257
[Rob] Give him slack!
Give him slack!
864
00:39:21,292 --> 00:39:22,025
Give him slack!
865
00:39:22,059 --> 00:39:23,893
You okay Tim?
866
00:39:23,928 --> 00:39:26,930
[tense music playing]
867
00:39:32,670 --> 00:39:34,371
Tim? You look good?
868
00:39:36,006 --> 00:39:37,407
You okay, Tim?
869
00:39:40,378 --> 00:39:43,380
[tense music playing]
870
00:39:46,751 --> 00:39:49,219
[Patrick] LF is on the hook.
871
00:39:49,253 --> 00:39:51,121
That was [bleep] sporty boys.
872
00:39:51,155 --> 00:39:54,157
[dramatic music playing]
873
00:39:57,294 --> 00:40:00,296
[cheers and applause]
874
00:40:01,999 --> 00:40:04,601
[Victor] Thank you, guys,
well done!
875
00:40:04,635 --> 00:40:06,603
Thanks for coming to get me!
876
00:40:06,637 --> 00:40:08,471
[Demetri] Despite
an electrical failure
877
00:40:08,506 --> 00:40:10,673
and a carbon dioxide scare,
878
00:40:10,708 --> 00:40:12,909
Victor has conquered the fourth
879
00:40:12,943 --> 00:40:14,544
of the five oceans.
880
00:40:14,578 --> 00:40:16,146
[Victor] Well done.
881
00:40:16,180 --> 00:40:18,381
[Patrick] You did it buddy,
you did it!
882
00:40:18,416 --> 00:40:19,649
- [Don] Congratulations.
- [Victor] Captain Walsh,
883
00:40:19,683 --> 00:40:21,217
well done sir. Thank you
for showing the way.
884
00:40:21,252 --> 00:40:22,519
- [Don] You're my hero.
- Thank you.
885
00:40:22,553 --> 00:40:23,586
No, you're mine.
886
00:40:23,621 --> 00:40:24,721
[Patrick] Victor Vescovo,
887
00:40:24,755 --> 00:40:27,090
world's deepest diver!
888
00:40:27,124 --> 00:40:29,025
Whoo!
889
00:40:29,059 --> 00:40:30,994
[Victor] It was a...
It was an amazing dive.
890
00:40:31,028 --> 00:40:34,063
I think almost exactly 12 hours
891
00:40:34,098 --> 00:40:36,399
but I must confess
that there is more life
892
00:40:36,434 --> 00:40:37,700
down there than I expected.
893
00:40:37,735 --> 00:40:39,869
I thought it was
gonna be completely dead,
894
00:40:39,904 --> 00:40:41,504
and it is not.
895
00:40:41,539 --> 00:40:44,541
[dramatic music playing]
896
00:40:47,044 --> 00:40:49,012
I'm just glad to have you...
897
00:40:49,046 --> 00:40:50,413
- It's good to be back.
- ...back home safe.
898
00:40:52,783 --> 00:40:53,883
It's great to have him back.
899
00:40:53,918 --> 00:40:55,585
It was a great dive.
900
00:40:55,619 --> 00:40:58,421
[Don] It's an inspired
clever design.
901
00:40:58,456 --> 00:41:01,791
And even it's been 60 years
since we did ours,
902
00:41:02,893 --> 00:41:06,496
this is like stepping
into the future.
903
00:41:08,065 --> 00:41:09,699
[Victor] Looking at a map
you can take a look
904
00:41:09,733 --> 00:41:13,269
at the Mariana Trench
and its very dark and blue,
905
00:41:13,304 --> 00:41:16,172
even black. Its intimidating.
906
00:41:16,207 --> 00:41:17,740
I have seen the sandy bottoms,
907
00:41:17,775 --> 00:41:19,542
I've seen the rocky ledges,
908
00:41:19,577 --> 00:41:22,312
and it's not a deep
dark scary place,
909
00:41:22,346 --> 00:41:24,047
it's tough to get to
910
00:41:24,081 --> 00:41:26,149
but there's an incredible
amount of things
911
00:41:26,183 --> 00:41:28,485
to discover there
and we now have a tool
912
00:41:28,519 --> 00:41:29,886
that can bring us there.
913
00:41:29,920 --> 00:41:32,922
[dramatic music playing]