(1) When Rocky tries to steal Philo's science project, Philo daydreams that he's a brilliant toy inventor. Everything goes well in his fantasy until rival toy maker Rocky kidnaps Philo and forces him to build nasty toys. (2) Ed and Edna Flintstone reluctantly allow their pet, Dino, to sleep in the house every night, but he proves his worth when a burglar breaks in. (3) Captain Caveman's mother is coming to visit at the same time a hair blob created by Mr. Bad attacks the Amrock Hair Supply factory. When Cavey and Cavey Jr. are captured, it's up to Grandma Cavemom to stop Mr. Bad before he can use hair removal on them.