At any one time, there are a million people airborne somewhere in the world. That equates to an entire airborne city – a city in the sky. So what does it take to run a “city” at 30,000 feet?

The series City in the Sky sets off around the world to uncover the invisible global networks and complex logistics that make it all possible. It comes to CPTV Wednesdays, Feb. 8-22 at 10 p.m.

View the trailer:

Episodes include:

“Departure”
Airs Feb. 8 at 10 p.m.
Learn what it takes to get a million people off the ground.

“Airborne”
Airs Feb. 15 at 10 p.m.
Examine the hidden army that keeps your plane safe and learn why flying has become safer than ever.

“Arrival”
Airs Feb. 22 at 10 p.m.
Learn about the global networks and technology involved in getting passengers safely back to earth.