When his parents must go out of town on business, Dennis stays with Mr. and Mrs. Wilson. He is driving Mr. Wilson crazy, but he is just trying to be helpful, even to the thief who has arrived in town.

Those bumbling cadets take to the streets when three inept goons successfully orchestrate a metropolitan crime wave.

Ernest helps Santa Claus as he searches for his successor.

The misfit Police Academy (1984) graduates now are assigned to train a group of civilian volunteers to fight crime once again plaguing the streets.