On Thanksgiving Eve, 1971, a man calling himself Dan Cooper hijacked a Northwest Orient flight, collected two hundred thousand dollars in ransom, and parachuted into a November rainstorm somewhere over Washington state — never to be found. Tonight, retired FBI Special Agent Thomas Briggs walks Sterling through the only unsolved hijacking in commercial aviation history: the rare metals hidden on a clip-on tie, the suspects who could have pulled it off, and the evidence emerging more than fifty years later that may finally name the ghost.

Tonight's Numbers Station Puzzler: crack the broadcast, then email your answer and the episode number (episode 59) to [email protected] for a shot at a secret line to the show.

Presented by Double Secret Labs — we do science so you don't have to.

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