Alien Skies Unsealed: Alien Files : Season 3 Episode 7
History 30m
Aired: February 28th, 2014 @ 9:00 PM EST on History
Every day, millions take to the sky in commercial flights all over the world. But decades of evidence have revealed we may not be the world's only frequent flyers. Are we in danger of losing control of our skies to extraterrestrial beings?
