Victor Frankenstein (played by Barret Oliver) is a young boy who creates movies starring his dog, Sparky (a Bull Terrier, whose name is a play on the use of electricity in the film). After Sparky is hit by a car and killed, Victor learns at school about electrical impulses in muscles and is inspired to bring his pet Frankenstein's monster. He creates elaborate machines which bring down a bolt of lightning that revives the dog. Victor is pleased, but when the Frankensteins decide to introduce the revitalized Sparky to his neighbors, they become angry and terrified.