In a boorish future, the government sponsors a popular, but bloody, cross-country race in which points are scored by mowing down pedestrians. Five teams, each comprised of a male and female, compete using cars equipped with deadly weapons. Frankenstein, the mysterious returning champion, has become America's hero, but this time he has a passenger from the underground resistance.
An astronaut exposed to cosmic rays outside of Saturn's rings returns to Earth and begins to melt away. Escaping from the hospital, he wanders around the backwoods looking for human flesh to eat.
Coy "Cannonball" Buckman and his blazing red Pontiac enter the Trans-America Grand Prix, an underground road race spanning the continent in which there are no rules, no speed limits and no heed for the law. En route, Buckman jockeys with an international ensemble of racers for a $100,000 purse. But there are none more important than Cade Redman, his direct competition for a guaranteed spot on the elite Modern Motors racing team.
James Iglehart is Doug Russell, an American who steals a shipment of gold in the Philippines with two Vietnam War buddies, who cut his throat and throw him overboard. Russell washes ashore an island inhabited by two Japanese soldiers stranded there since World War II. They nurse him back to health and he is taught martial arts and the art of the samurai. Back in the States, his treacherous pals, Marelli and Maghee, use their loot and viciousness to muscle their way into Los Angels mafia turf.
Teen lovers Bobby and Terry band together with other roller skaters to try and prevent a powerful mobster taking over the land their favourite skating rink sits on, and compete in the Boogie Contest.
A rich girl steals her dad's Rolls Royce and heads off to Las Vegas to get married. However, her angry parents, a jealous suitor, and a bunch of reward seekers are determined to stop her.
