Join or Sign In
Sign in to customize your TV listings
By joining TV Guide, you agree to our Terms of Use and acknowledge the data practices in our Privacy Policy.

Before his adventure begins, Digby is given to Bill by a friendly vet, but as his grandfather doesn't like to have an English sheepdog in his house, he is forced to give him away. He gives him to a man who works in a defense lab that experiments with animals and plants for space travel. A liquid growth formula called Project X is made there, and the animal trainer steals some of it to boost his own tomato crop. Digby accidentally drinks some and, as a result, is growing all the time. Eventually, he's the size of an ocean liner. As weird animals are attractions, he is stolen by two well-dressed hoods and sold to a circus, from which he escapes, hunted by the Army and Air Force.
Loading. Please wait...