1 00:00:06,973 --> 00:00:08,007 [suspenseful music playing] 2 00:00:08,041 --> 00:00:09,641 [Patrick] This is the mother of them all, 3 00:00:09,676 --> 00:00:11,176 I mean, it is the deepest of them all. 4 00:00:11,211 --> 00:00:13,078 So, we've got a lot on the line. 5 00:00:13,113 --> 00:00:15,347 We're going to be assaulting the challenger deep 6 00:00:15,382 --> 00:00:17,216 with more technology and more capability 7 00:00:17,250 --> 00:00:19,351 than anyone has ever done in history. 8 00:00:20,820 --> 00:00:21,820 You realize how deep we are, right? 9 00:00:21,855 --> 00:00:24,156 [Alan] Oh, my word, look at that! 10 00:00:24,190 --> 00:00:26,725 It's going up! 11 00:00:26,760 --> 00:00:28,794 [Victor] Oh! This is really hard. 12 00:00:28,828 --> 00:00:31,296 [Alan] Whoa! Up, up, up up! 13 00:00:32,399 --> 00:00:33,665 What the hell was that? 14 00:00:33,700 --> 00:00:35,100 [machine beeping] 15 00:00:35,135 --> 00:00:36,468 Got a big battery fault. 16 00:00:38,371 --> 00:00:41,874 Surface, LF has lost power. 17 00:00:44,244 --> 00:00:46,745 [suspenseful music playing] 18 00:00:46,780 --> 00:00:48,380 [Demetri] Humankind has explored 19 00:00:48,415 --> 00:00:49,915 every continent on Earth. 20 00:00:51,384 --> 00:00:53,752 We've climbed its tallest mountains, 21 00:00:55,688 --> 00:00:57,689 and even journeyed into space. 22 00:00:58,825 --> 00:01:00,292 [man] Thank you, Mr. President. 23 00:01:00,326 --> 00:01:01,760 [Demetri] But there's a vast swathe 24 00:01:01,795 --> 00:01:02,795 of our own planet 25 00:01:02,829 --> 00:01:04,830 that has remained a mystery. 26 00:01:09,436 --> 00:01:11,670 The deep ocean. 27 00:01:11,704 --> 00:01:14,473 Stretching down over 35,000 feet 28 00:01:14,507 --> 00:01:16,208 into crushing pressures, 29 00:01:16,242 --> 00:01:19,044 it's been near impossible to reach... 30 00:01:19,079 --> 00:01:20,813 until now. 31 00:01:22,248 --> 00:01:24,783 New engineering breakthroughs are driving 32 00:01:24,818 --> 00:01:26,485 an audacious global mission 33 00:01:26,519 --> 00:01:28,587 to dive to the deepest points 34 00:01:28,621 --> 00:01:29,955 of all the five oceans, 35 00:01:29,989 --> 00:01:32,758 for the first time in history. 36 00:01:32,792 --> 00:01:35,527 These pioneers will push technology 37 00:01:35,562 --> 00:01:36,595 to the limit... 38 00:01:36,629 --> 00:01:37,362 [Patrick] What the hell was that? 39 00:01:37,397 --> 00:01:38,664 We have leak in hatch 40 00:01:38,698 --> 00:01:40,032 [Patrick] Oh, my God. 41 00:01:40,066 --> 00:01:41,800 [Demetri] ...to open up this final frontier, 42 00:01:41,835 --> 00:01:43,368 as never before. 43 00:01:43,403 --> 00:01:45,404 [Cassie] Trying to like mentally put yourself 44 00:01:45,438 --> 00:01:47,706 at the bottom is just mind blowing. 45 00:01:47,740 --> 00:01:49,508 [Demetri] Mapping hidden landscapes 46 00:01:49,542 --> 00:01:51,777 discovering unknown life forms... 47 00:01:51,811 --> 00:01:53,412 [Alan] What on Earth was that? 48 00:01:53,446 --> 00:01:55,013 [Victor] There is something there. 49 00:01:55,048 --> 00:01:56,482 [Demetri] ...and unlocking the secrets 50 00:01:56,516 --> 00:01:58,650 of how life in the extreme deep ocean 51 00:01:58,685 --> 00:02:00,953 affects our entire planet. 52 00:02:00,987 --> 00:02:03,989 [dramatic music playing] 53 00:02:12,565 --> 00:02:14,967 [suspenseful music playing] 54 00:02:15,001 --> 00:02:17,569 [Demetri] Ex Naval Commander Victor Vesco, 55 00:02:17,604 --> 00:02:19,238 is now getting ready to face 56 00:02:19,272 --> 00:02:21,540 the ultimate challenge of this expedition, 57 00:02:21,574 --> 00:02:23,842 the deepest dive on our planet. 58 00:02:25,445 --> 00:02:27,613 [Kelvin] Roger that. You are free to dive. 59 00:02:27,647 --> 00:02:30,482 [Demetri] So far he's travelled 20,000 miles 60 00:02:30,517 --> 00:02:32,317 half way across the world 61 00:02:32,352 --> 00:02:35,621 and completed three record-breaking dives. 62 00:02:35,655 --> 00:02:37,389 [Victor] And I just wanted to say thank you all 63 00:02:37,423 --> 00:02:38,991 for getting us to this point. 64 00:02:39,025 --> 00:02:41,760 It's been four years since we first started 65 00:02:41,794 --> 00:02:43,428 thinking about this overall mission. 66 00:02:43,463 --> 00:02:44,563 [Demetri] But now, 67 00:02:44,597 --> 00:02:45,998 he will be pushed to the limit 68 00:02:46,032 --> 00:02:49,268 by the largest and deepest of the Earth's oceans. 69 00:02:52,372 --> 00:02:54,006 The Pacific. 70 00:02:56,509 --> 00:02:57,609 [Rob] I mean, this is 71 00:02:57,644 --> 00:02:58,977 the mightiest ocean of them all, 72 00:02:59,012 --> 00:03:02,714 this is a third of the surface of our planet. 73 00:03:02,749 --> 00:03:04,783 The Pacific Ocean is different than all the others 74 00:03:04,817 --> 00:03:07,252 in that it has the oldest seafloor in the oceans. 75 00:03:07,287 --> 00:03:09,388 It is just much deeper, much older ocean. 76 00:03:10,623 --> 00:03:11,690 [Demetri] It is also home 77 00:03:11,724 --> 00:03:13,592 to the deepest place on Earth, 78 00:03:13,626 --> 00:03:15,460 the Mariana Trench. 79 00:03:15,495 --> 00:03:17,396 [Victor] From a very young age 80 00:03:17,430 --> 00:03:18,730 I loved just looking at atlases 81 00:03:18,765 --> 00:03:21,133 and one of the most prominent features in any Atlas 82 00:03:21,167 --> 00:03:23,101 is the deepest point in the world 83 00:03:23,136 --> 00:03:24,303 which is the Mariana Trench. 84 00:03:25,605 --> 00:03:27,072 This deep dark place, 85 00:03:27,106 --> 00:03:29,308 of course it captured my imagination. 86 00:03:29,342 --> 00:03:31,643 [Demetri] It's 8,000 feet deeper 87 00:03:31,678 --> 00:03:34,112 than any dive Victor has attempted before, 88 00:03:34,147 --> 00:03:37,616 and it will subject the sub to enormous pressure. 89 00:03:37,650 --> 00:03:39,785 [Patrick] Just come up on the A-Frame. 90 00:03:39,819 --> 00:03:42,087 Let me know when we're clear for straps, Kelvin. 91 00:03:42,121 --> 00:03:43,455 [Kelvin] Yeah, we're clear for straps. 92 00:03:43,489 --> 00:03:45,457 [Rob] It's as an extreme environment 93 00:03:45,491 --> 00:03:47,859 as we have on planet Earth. 94 00:03:47,894 --> 00:03:49,194 This is the major league, 95 00:03:49,229 --> 00:03:50,862 you know, this is as difficult, 96 00:03:50,897 --> 00:03:52,464 as technically challenging 97 00:03:52,498 --> 00:03:55,267 as submersible diving gets on planet Earth. 98 00:03:58,271 --> 00:04:00,305 [Demetri] The bottom of the Mariana Trench 99 00:04:00,340 --> 00:04:02,641 has only been only visited by three people 100 00:04:02,675 --> 00:04:05,277 and one of them is on board. 101 00:04:05,311 --> 00:04:08,013 Okay, good. Thank you guys. 102 00:04:08,047 --> 00:04:10,215 [Demetri] Captain Don Walsh. 103 00:04:10,250 --> 00:04:14,219 In 1960 he and a fellow deep-sea explorer 104 00:04:14,254 --> 00:04:16,121 took an experimental craft 105 00:04:16,155 --> 00:04:18,790 to the uncharted depths of our planet. 106 00:04:23,129 --> 00:04:25,163 [Don] I never had any fear. 107 00:04:25,198 --> 00:04:26,865 Why have fear? 108 00:04:26,933 --> 00:04:28,533 What are you gonna do about it? 109 00:04:28,568 --> 00:04:30,168 You're committed. 110 00:04:30,203 --> 00:04:32,170 You're gonna go down there as far as you can, 111 00:04:32,205 --> 00:04:34,306 if something doesn't work, too bad. 112 00:04:34,340 --> 00:04:36,208 And there's nothing you can do about it. 113 00:04:36,242 --> 00:04:39,378 [Demetri] Fifty-two years later in 2012, 114 00:04:39,412 --> 00:04:42,414 Don witnessed a solo dive by Hollywood director 115 00:04:42,448 --> 00:04:44,783 and deep-sea explorer, James Cameron, 116 00:04:44,817 --> 00:04:46,018 who recorded a depth 117 00:04:46,052 --> 00:04:48,754 just 10 feet shy of Don's record. 118 00:04:48,788 --> 00:04:50,689 [phone ringing] 119 00:04:50,723 --> 00:04:52,024 [James] Hey, Victor. 120 00:04:52,058 --> 00:04:53,125 Hi, Jim, how are you? 121 00:04:53,159 --> 00:04:54,626 [James] Hi, good, good. 122 00:04:54,661 --> 00:04:56,295 [Victor] It's great sitting next to the first person 123 00:04:56,329 --> 00:04:57,729 to go down to the Challenger Deep 124 00:04:57,764 --> 00:04:59,498 and it's just so wonderful 125 00:04:59,532 --> 00:05:00,732 to be able to talk to the second person 126 00:05:00,767 --> 00:05:02,801 and hopefully we can continue passing the baton. 127 00:05:02,835 --> 00:05:04,169 [James] Yeah that's great. 128 00:05:04,203 --> 00:05:05,771 I mean, you've really kicked the ball further 129 00:05:05,805 --> 00:05:08,307 down field in terms of the technology. 130 00:05:08,341 --> 00:05:10,175 And the only other piece of advice I would give 131 00:05:10,209 --> 00:05:13,245 is give yourself a moment, stop, 132 00:05:13,279 --> 00:05:15,147 and just look at the window 133 00:05:15,181 --> 00:05:16,615 and just think about where you are 134 00:05:16,649 --> 00:05:17,582 and what it means. 135 00:05:17,617 --> 00:05:18,517 That's great, Jim. 136 00:05:18,551 --> 00:05:20,152 I appreciate that. 137 00:05:20,186 --> 00:05:22,187 [Demetri] But now, 138 00:05:22,221 --> 00:05:24,189 Victor is on a mission to find a spot 139 00:05:24,223 --> 00:05:27,025 even deeper than Don Walsh and James Cameron, 140 00:05:27,060 --> 00:05:30,362 and break a record that has stood for 60 years. 141 00:05:30,396 --> 00:05:32,964 [Cassie] We have one of the best sonars 142 00:05:32,999 --> 00:05:34,399 in the world right now 143 00:05:34,434 --> 00:05:35,801 and we're going to produce 144 00:05:35,868 --> 00:05:37,936 the most accurate map of the Mariana Trench 145 00:05:37,970 --> 00:05:39,304 that's ever been done before. 146 00:05:40,773 --> 00:05:42,808 [Demetri] The deepest section of the Mariana Trench 147 00:05:42,842 --> 00:05:45,344 is in a hollow known as the Challenger Deep. 148 00:05:46,879 --> 00:05:48,280 But the team also want to take on 149 00:05:48,314 --> 00:05:50,349 a deep ocean exploratory dive, 150 00:05:50,383 --> 00:05:52,484 a hundred and forty miles east 151 00:05:52,518 --> 00:05:53,819 in the Sirena Deep, 152 00:05:53,853 --> 00:05:56,755 where no submersible has ever been before. 153 00:05:57,990 --> 00:06:01,259 [Patty] So, the deepest part is right in here. 154 00:06:01,294 --> 00:06:02,594 Nobody's been down there. 155 00:06:02,628 --> 00:06:04,429 [Demetri] The team will be on the hunt 156 00:06:04,464 --> 00:06:06,732 for vital new scientific data 157 00:06:06,766 --> 00:06:08,567 that may help find alien life 158 00:06:08,634 --> 00:06:10,435 elsewhere in our solar system. 159 00:06:11,838 --> 00:06:13,939 Because there are frozen moons, 160 00:06:13,973 --> 00:06:16,074 like Europa orbiting Jupiter, 161 00:06:16,109 --> 00:06:18,877 that NASA believes could hold life. 162 00:06:18,911 --> 00:06:20,912 Beneath the surface ice, 163 00:06:20,946 --> 00:06:23,048 deep oceans might nurture organisms 164 00:06:23,082 --> 00:06:24,950 able to exist in environments 165 00:06:25,017 --> 00:06:27,552 as extreme as the Mariana Trench. 166 00:06:27,587 --> 00:06:30,789 [Patty] NASA's search for life efforts 167 00:06:30,823 --> 00:06:34,559 are looking for the limits of life. 168 00:06:34,594 --> 00:06:35,694 They are very interested 169 00:06:35,728 --> 00:06:38,063 in looking at the deep trenches 170 00:06:38,097 --> 00:06:40,499 to see if microbes can live 171 00:06:40,533 --> 00:06:44,603 in these most extreme environments on the planet. 172 00:06:44,637 --> 00:06:47,406 [Demetri] If they can find colonies of bacteria 173 00:06:47,440 --> 00:06:48,974 in the Mariana Trench, 174 00:06:49,008 --> 00:06:51,576 then extreme forms of life could also exist 175 00:06:51,611 --> 00:06:54,312 in the oceans of those alien moons. 176 00:06:56,215 --> 00:06:58,250 The general conception I have for this dive 177 00:06:58,284 --> 00:07:01,453 is that this is very much a science focused dive. 178 00:07:01,487 --> 00:07:03,822 One thing that I am concerned about 179 00:07:03,856 --> 00:07:05,824 and that's recovering the samples. 180 00:07:05,858 --> 00:07:08,560 First priority is a rock with some stuff on it. 181 00:07:08,594 --> 00:07:10,562 Fingers crossed. 182 00:07:10,596 --> 00:07:12,063 Just be vigilant 183 00:07:12,098 --> 00:07:13,432 as you're approaching the bottom. 184 00:07:13,466 --> 00:07:14,833 That, that depth sounder, 185 00:07:14,867 --> 00:07:16,168 once it starts picking up 186 00:07:16,202 --> 00:07:17,836 and as you know Victor giving you 187 00:07:17,870 --> 00:07:19,271 - reliable data... - Mmm-hmm. 188 00:07:19,305 --> 00:07:20,505 ...you gotta pay attention to it, 189 00:07:20,540 --> 00:07:21,973 you can't ignore it. 190 00:07:22,008 --> 00:07:23,308 I mean, I don't know if there's pinnacles 191 00:07:23,342 --> 00:07:25,410 or haystacks. 192 00:07:25,445 --> 00:07:27,078 Who knows what we'll find. 193 00:07:28,281 --> 00:07:29,681 [Kelvin] We're gonna leave that one down. 194 00:07:29,715 --> 00:07:31,149 [Demetri] Even though the dive is not the deepest 195 00:07:31,184 --> 00:07:32,651 in the Mariana Trench, 196 00:07:32,685 --> 00:07:34,186 at 35,000 feet 197 00:07:34,220 --> 00:07:35,921 it will put the sub's engineering 198 00:07:35,955 --> 00:07:37,856 under massive strain. 199 00:07:37,890 --> 00:07:39,858 [Patrick] It's a substantial pressure, 200 00:07:39,892 --> 00:07:41,460 so we've got a lot on the line. 201 00:07:41,494 --> 00:07:43,428 We basically got all the poker chips 202 00:07:43,463 --> 00:07:45,464 in the center of the table. 203 00:07:47,467 --> 00:07:50,502 [Demetri] Chief scientist, Alan Jamieson 204 00:07:50,536 --> 00:07:53,238 is joining Victor on this pioneering dive. 205 00:07:53,272 --> 00:07:55,040 - Welcome back, sir. - Hello. 206 00:07:55,107 --> 00:07:57,142 [Kelvin] LF, LF, SO. 207 00:07:57,176 --> 00:07:58,510 [man] LF, LF. 208 00:07:58,544 --> 00:08:00,145 [Kelvin] Hey, we're gonna go for release here. 209 00:08:00,179 --> 00:08:02,914 We'll let the sub off the hook. 210 00:08:02,949 --> 00:08:04,950 - Do it. - Perfect. 211 00:08:06,185 --> 00:08:07,652 [Stuart] And we're currently 212 00:08:07,687 --> 00:08:09,588 about 900 meters from the drop zone. 213 00:08:09,622 --> 00:08:10,922 [Kelvin] Okay. Roger that. 214 00:08:12,592 --> 00:08:14,125 [Patrick] We can tow him for a couple of minutes, 215 00:08:14,160 --> 00:08:15,660 no worries. 216 00:08:15,695 --> 00:08:17,128 [Stuart] Twelve, before a few minutes 217 00:08:17,163 --> 00:08:18,697 until we're ready to let him go. 218 00:08:18,731 --> 00:08:21,299 [Demetri] To dive Victor will pump water 219 00:08:21,334 --> 00:08:23,735 into empty ballast tanks at the top of the sub. 220 00:08:25,505 --> 00:08:28,573 But now the waves are picking up 221 00:08:28,608 --> 00:08:30,308 and flooding them early. 222 00:08:32,445 --> 00:08:34,045 [Rob] Seventy-five to go. 223 00:08:35,615 --> 00:08:37,148 [John] They're spending a lot of time under the water. 224 00:08:37,183 --> 00:08:39,117 The tanks are gonna be filling all the time. 225 00:08:39,151 --> 00:08:40,952 [Patrick] Son of a [bleep]. 226 00:08:40,987 --> 00:08:44,523 [Frank] With that much weight on the sub. 227 00:08:44,557 --> 00:08:46,291 That [beep] goes down quick. 228 00:08:46,325 --> 00:08:48,226 [Rob] Fifty meters to go. 229 00:08:51,097 --> 00:08:52,063 [Patrick] That's gotta be it. 230 00:08:52,098 --> 00:08:53,231 We can disconnect now. 231 00:08:53,266 --> 00:08:54,733 [Rob] Release, release! 232 00:08:57,003 --> 00:08:57,802 [Patrick] It's tied off. 233 00:08:57,837 --> 00:08:59,204 Get that [bleep] tow line. 234 00:08:59,238 --> 00:09:00,772 [man] Grab on that tow line. 235 00:09:02,275 --> 00:09:04,009 [Patrick] Get her loose. 236 00:09:04,043 --> 00:09:05,510 [Rob] Release. 237 00:09:05,545 --> 00:09:07,145 [Patrick] When those tanks filled up, 238 00:09:07,179 --> 00:09:10,682 - she's diving. - [Rob] Release. 239 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 242 00:09:16,022 --> 00:09:17,589 and dragged to his death. 243 00:09:17,623 --> 00:09:19,891 [Rob] Release, release, release! 244 00:09:28,067 --> 00:09:29,634 [suspenseful music playing] 245 00:09:29,669 --> 00:09:30,969 [Patrick] Those tanks filled up. 246 00:09:31,003 --> 00:09:33,138 She's diving. 247 00:09:33,172 --> 00:09:34,906 [Rob] Release, release, release! 248 00:09:34,941 --> 00:09:36,641 [Patrick] Come on, Tim, get her loose. 249 00:09:37,577 --> 00:09:40,579 [suspenseful music playing] 250 00:09:48,087 --> 00:09:49,521 [Tim] As I am taking handrails off, 251 00:09:49,555 --> 00:09:51,056 I could feel the sub going out 252 00:09:51,090 --> 00:09:51,990 from underneath me. 253 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. 256 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]