West tries to protect Prof. Nielsen, a demolitions expert. But he fails: Nielson is blown up by the evil Dr. Miguelito Loveless.

West is lured to a ghost town peopled with lifelike dummies as part of an elaborate trap set for him by his nemesis Dr. Loveless.

Intent on making California a kingdom for children, evil Dr. Loveless makes his play for the state with a series of toys---which explode.