Daisy Belle comes over to stay at the Seville House while her mother is shopping. When Simon and Theodore take off into another room, Alvin's forced to spend time with her. In order to amuse the girl, Alvin is forced to use his imagination to create a medieval fantasy. Daisy plays the part of a prisoner held by an evil fire-breathing dragon and Alvin is her brave knight trying to rescue her, but the dragon unfortunately is more cowardly than fierce. Before Alvin can save her, her mother arrives to take Daisy home.