The final installment of the Back to the Future trilogy finds Marty digging the trusty DeLorean out of a mineshaft and looking for Doc in the Wild West of 1885. But when their time machine breaks down, the travelers are stranded in a land of spurs. More problems arise when Doc falls for pretty schoolteacher Clara Clayton, and Marty tangles with Buford Tannen.
The original characters from the first Cannonball Run movie compete in an illegal race across the country once more in various cars and trucks.
A small-town loser determines to have one more shot at the big time by winning a football game.