Larry and Balki, Jennifer and Mary Anne, Lydia and Mr. Gorpley, and of course Larry's father are all trapped in the flooding basement. Larry attempts to solve the problem without much luck. So thinking they're all going to die, Larry must tell his father how he feels. Luck changes when Larry finds his chemistry set.
Elenco: Bronson Pinchot , Mark Linn-Baker , Anton Lesser , Alisan Porter , Belita Moreno , Ernie Sabella , Jo Marie Payton , Sam Anderson .