ietnam veteran John Rambo has survived many harrowing ordeals in his lifetime and has since withdrawn into a simple and secluded existence in Thailand, where he spends his time capturing snakes for local entertainers, and chauffeuring locals in his old PT boat. In Thailand, John Rambo joins a group of mercenaries to venture into war-torn Burma, and rescue a group of Christian aid workers who were kidnapped by the ruthless local infantry unit.