Rambo: First Blood Trailer (1982)

The film centers on John Rambo, a former member of the US Army's Green Berets (an elite Special Forces unit) who fought in Vietnam and was a Medal of Honor recipient for his actions there. Rambo has difficulty adjusting to civilian life and wanders the country as a drifter. The film begins as he is seeking out his friend Delmore Barry, apparently the only other Special Forces member from his unit to make it out of Vietnam alive.