Vietnam veteran and drifter John J. Rambo (Sylvester Stallone) wanders into a small Washington town in search of an old friend, but is met with intolerance and brutality by the local sheriff, Will Teasle (Brian Dennehy). When Teasle and his deputies restrain and shave Rambo, he flashes back to his time as a prisoner of war and unleashes his fury on the officers. He narrowly escapes the manhunt, but it will take his former commander (Richard Crenna) to save the hunters from the hunted.
Based on the popular board game, this comedy begins at a dinner party hosted by Mr. Boddy (Lee Ving), where he admits to blackmailing his visitors. These guests, who have been given aliases, are Mrs. Peacock (Eileen Brennan), Miss Scarlet (Lesley Ann Warren), Mr. Green (Michael McKean), professor Plum (Christopher Lloyd), Mrs. White (Madeline Kahn) and Col. Mustard (Martin Mull). When Boddy turns up murdered, all are suspects, and together they try to figure out who is the killer.
In a violent, near-apocalyptic Detroit, evil corporation Omni Consumer Products wins a contract from the city government to privatize the police force. To test their crime-eradicating cyborgs, the company leads street cop Alex Murphy (Peter Weller) into an armed confrontation with crime lord Boddicker (Kurtwood Smith) so they can use his body to support their untested RoboCop prototype. But when RoboCop learns of the company’s nefarious plans, he turns on his masters.