Documentary exploring the story of two music entrepreneurs in the mid-1990s who claimed to have unearthed top-secret footage showing the corpse of an alien recovered from a 1947 crash site near Roswell, New Mexico. They set out to show it to the world, but first they had to find the money to buy it from the ex-military cameraman who holds the film reels.

As the film is released across the globe to enormous fanfare, the footage is pored over by ufologists, journalists and the military to verify its authenticity, but Ray and Gary are hiding something.

Hollywood producer Bob Kiviat presses Ray and Gary over Alien Autopsy's origins as hoax claims grow. Now, government hearings fuel the debate.