1- Dennis accidentally locks the keys in the car while out in the country with Mr. Wilson for a demonstration of homing pigeons. Dennis ties a note to the pigeon which gets stuck in a tree and then Mr. Wilson gets stuck after freeing the bird. Mrs. Wilson arrives with the fire department after seeing him on the news. 2- PeeBee's newest invention accidentally makes four more of Dennis to the terror of Margaret, Mr. Wilson, and his parents. PeeBee and the original Dennis lure the clones back into the invention lab with an ice cream truck bell and the neighborhood is restored to "peace". 3- PeeBee invents a robot tooth -- puller to extract Joey's tooth. They practice on Mr. Wilson, removing his dentures, which terrifies Joey straight to the dentist's office.