Authorities all over the world say UFOs are real, but what are they, and are they a threat? This series examines the best and latest evidence caught on camera.
Episode 1
Episode 2
Episode 3
Episode 4
Episode 5
Episode 6
Episode 7
Episode 8
Episode 9
Episode 10
UFO Europe: The Untold Stories
Unidentified: Inside America's UFO Investigation
NASA's Unexplained Files
Close Encounters
Encounters
Beyond: UFOS and the Unknown
Encounter: UFO
Top Secret UFO Projects Declassified
Investigation Alien
Hangar 1: The UFO Files
UFOs Declassified
UFO
UFO
Unsolved Mysteries
Les portes du futur
The Secret of Skinwalker Ranch
Ummo: La España alienígena
The Proof Is Out There: Bermuda Triangle Edition
Raël: The Alien Prophet
In Search of Aliens