A Hollywood actress, who had been competing with Sammy's mother for an important role, is murdered, but thirteen-year-old Sammy and her friend Marissa are on the case.
As the Planet's Funniest Kid Comic finals near, Jamie faces a whirlwind of attention at school and in the media and the fame starts to go to his head, but in Hollywood with Uncle Frankie, some of his fellow comedians quickly show him what competition andpressure are all about.