UFO Mysteries That Defy Explanation | Unidentified: Inside America's UFO Investigation

From shocking military encounters to mysterious triangle-shaped craft and unexplained sightings over remote regions, revisit some of the most compelling UFO investigations ever uncovered. See more in this Unidentified: Inside America's UFO Investigation compilation. Ch1 0:00 - STUNNING ARTCTIC UFO SIGHTING Ch2 7:15 - Exclusive Footage of UFO Showdown Ch3 14:40 - Stunning Reports of Triangle Shaped UFOs

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