City in the Sky


Episode 3 | 53m 1s | Video has closed captioning.

There are around a million people airborne at any one time. But what goes up must come down - and getting passengers safely back to earth depends on complex global networks and some astonishing technology.

Aired: 02/22/17

Expires: 06/05/24

Rating: TV-PG

Problems Playing Video? | Closed Captioning