When thieves see Richie building a snowman near a vault, one of them disguises himself and takes the place of the snowman to get the combination.; During the days of cavemen, Richie and his dad notice a real traffic problem. So, they devise a public-transit system, dinosaur-style!; Two thieves plan to break into Rich mansion. So, one distracts Irona with flattery while the other gets to work robbing the place.; Richie must help a dim-witted student submit a good report, or the team will miss his basketball skills.