20/20 Edition - Headline 20th Anniversary Edition The classic thriller that enthralled a generation The inspiration behind a cinematic phenomenon. FIRST BLOOD - this is where the legend began. Once they were soldiers: Rambo the young Vietnam Veteran, disillusioned and ragged. And Teasle, a Korean War Vet and middle aged Chief of Police. Now they are deadly adversaries. Both trained to kill, they are locked in a terrifying man-hunt that is leading them ever closer to a maelstrom of violence and destruction.