History's Greatest Mysteries (2020)

S04E14 Who is D.B. Cooper?

In 1971, a man took control of a Northwest Orient Airlines flight, making it the only unresolved case of air piracy to date. He demanded four parachutes and a ransom of $200,000. After receiving the cash, he leapt from the aircraft, disappearing without a trace and leaving authorities baffled by his vanishing act.