A pilot records a fleet of glowing UFOs over the South China Sea that appear and disappear; 12,000-year-old carvings at Karahan Tepe depict humanoids with mysterious features.
Digging into a UFO crash caught on camera in Brazil; a close encounter of the Beatles kind; finding out if aliens shut down a nuclear missile launch site in Montana; looking at the shapes of UFOs and considering a link between ghosts and aliens.
Accounts of an amphibious UFO in Indonesia; a mass abduction in Australia; a slew of deaths in Wales after a strange sighting; searching for an alien library with an astronaut and meeting a scientist hunting for an interdimensional portal.
Beth Duncan experiences something strange on her property outside Wineberry, W.Va.; amongst the hills and hollers of the mountain state, a mystery unfolds that stretches the limits of what is known about Bigfoot.
Across the state of West Virginia, Bigfoot encounters have been occurring for centuries; these creatures are seen and experienced in all forms of weather, in a myriad of ways.
During the 70s, top scientists and astronomers sent coded messages into space with the hopes of getting a response from an extraterrestrial civilization; what they didn't anticipate was a speedy reply and an uptick in sightings around the world.
A new theory is posed about what really happened to Charles Lindbergh's kidnapped son; experts may have finally solved one of Hollywood's biggest murder mysteries; a small Ohio town seeks answers to thousands of threatening letters.
Experts investigate the abduction of Betty and Barney Hill; new evidence surfaces about abductee Travis Walton; there may be an earthly explanation for the Mothman.
New theories about the Mantell UFO incident are revealed; scientific evidence may explain a UFO encounter in Texas; experts investigate what really crashed into a Canadian harbor.
In the summer of 1952, stories of U.S. Air Force jets chasing UFOs over the White House knock the Korean War off the front pages of newspapers; as rumors spread, President Harry S. Truman demands to know what was flying over his house.
In 1978, UFO enthusiast Paul Bennewitz claims he's intercepted extraterrestrial messages; military officials send counterintelligence officer Richard Doty to feed Bennewitz lies, questioning whether Doty himself is a pawn in an even bigger scheme.
Lt. Ryan Graves and pilots in his squadron detect and engage with UFOs on multiple occasions; he gave a detailed description of regular encounters that flight teams had with a black box UFO they were seeing every day.