Unidentified: Inside America's UFO Investigation 1x5

The team follows a trail of evidence connecting UFOs to the most destructive weapons in human history. A former U.S Air Force Colonel discloses an encounter on Christmas Eve 1980, while another former Air Force officer describes a UFO-related injury. Was the U.S. military planting UFO misinformation to distract attention from top secret test, or are they hiding an even more ominous threat?