

When the gang find a lost dog, they return her to her owner, Phyllis Diller. They soon learn that Ms. Diller's house is haunted, presumably by the ghosts of her deceased husbands.But is it really ghosts. . .or someone trying to scare her into giving out the combination for her safe, which houses her priceless jewel collection?
When the Mystery Machine breaks down near The Three Stooge's ghost town theme park, the gang try to figure out who's been sabotaging the Stooge's rides and running away the tourists.
When The Mystery Machine breaks down (as is expected) the gang bump into smugglers (loading crates into an airplane), Batman and Robin, a little old lady, and a punching clown filled with counterfeit cash. A tip leads them to the carnival. . .where they find Joker and Penguin behind the kooky counterfeit caper. As is usually the case with these villainous villains, our heroes wind up in a funhouse hideout.