The program was dedicated to collecting the testimonies of alleged witnesses of UFO phenomena and contrasted the facts with the opinion of experts such as astronomers, pilots and scientists in order to try to give a logical explanation to the event.
Episode 1
Episode 2
Episode 3
Episode 4
Episode 5
Episode 6
Episode 7
Episode 8
Episode 9
Episode 10
Episode 11
Episode 12
Episode 13
NASA's Unexplained Files
Close Encounters
Encounters
UFO Europe: The Untold Stories
Unidentified: Inside America's UFO Investigation
Raël: The Alien Prophet
Encounter: UFO
In Search of Aliens
Investigation Alien
Beyond: UFOS and the Unknown
Top Secret UFO Projects Declassified
UFOs Declassified
UFO
Evidence of the Unexplained
The Proof Is Out There: Bermuda Triangle Edition
UFOs: Investigating the Unknown
Unsolved Mysteries
Les portes du futur
America Undercover
Ummo: La España alienígena