In 1971, on a flight from Portland to Seattle, a man calling himself Dan Cooper hijacked a plane and requested $200,000. After the FBI complied with the requests the plane reentered the air with just the crew and Cooper. Somewhere over Nevada, Cooper parachutes from the plane with the money and is never seen or heard from again. Now, with help of modern forensics, experts hope DNA analysis of Cooper’s tie and recovered ransom money will solve the mystery of this infamous heist.