City in the Sky • 2016 • 1 episode • 2h:56m

Dallas and Hannah conclude the series by examining the process of bringing a plane safely to the ground. Hannah meets air traffic controllers at the world's busiest airport and visits a site that has seen over 2000 unscheduled landings in the last decade. Dallas sits in the cockpit of a plane heading for Paro, Bhutan, a place where only 26 pilots in the world are qualified to land.

Part 3 • 2016 • Technology