John Rambo is released from prison by the government for a top-secret covert mission to the last place on Earth he'd want to return - the jungles of Vietnam.

When A.T.F. agent Nick Adams goes undercover in a prison to unravel the mystery of a fellow agents death there. Warden Pike and his pet goons are involved in all kinds of corrupt activities; dope dealing and gun smuggling to name a few.

An heiress is kidnapped during the chaos of a riot on Christmas Eve.