A Southern California kid named Calvin Fuller is magically transported to the medieval kingdom of Camelot through a crack in the ground caused by an earthquake. Once there, he learns he was summoned by the wizard Merlin, who needs Calvin to save Camelot. Using dazzling modern inventions, can Calvin help King Arthur retain his crown and thwart the evil Lord Belasco?
Although Jason works as a department store clerk, he is also a reincarnated prince. Long ago, his beloved Jessie was snatched away from him by an evil wizard who used his powers to transform her into wooden statue. Now Jessie is in Jason's department store as a mannequin. When he encounters her, she awakens from her thousand-year sleep. They quickly revive their romance, but the evil wizard has been reincarnated as well, and he's up to no good.
Carlos has failed in show-biz and currently works as a waiter in a Mexican restaurant. There he meets Alex and dumb footballer Bruce celebrating their engagement with her parents. Alex' father is less than thrilled of her fiancée and says he'd rather accept anybody else. Eventually Alex hires Carlos to present him as her new fiancée.