Eighties teenager Marty McFly is accidentally sent back in time to 1955, inadvertently disrupting his parents' first meeting and attracting his mother's romantic interest. Marty must repair the damage to history by rekindling his parents' romance and - with the help of his eccentric inventor friend Doc Brown - return to 1985.

The final installment 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.

Wallace and Gromit have run out of cheese, and this provides an excellent excuse for the duo to take their holiday to the moon, where, as everyone knows, there is ample cheese.

Wallace rents out Gromit's former bedroom to a penguin, who takes up an interest in the techno trousers created by Wallace. However, Gromit later learns that the penguin is a wanted criminal.

Wallace's whirlwind romance with the proprietor of the local wool shop puts his head in a spin, and Gromit is framed for sheep-rustling in a fiendish criminal plot.