Resolving to become the world's greatest stand-up comedian despite less-than-funny challenges in his life, wheelchair-bound middle school student Jamie Grimm endures bullying from his mean-spirited cousin and hopes he will be fairly judged when he enters a local comedy contest.

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 and pressure are all about.

After being accepted into a big-city art school, Rafe Khatchadorian expects seventh grade to be a math-and-history-free fun zone. However, he quickly discovers that school is more competitive than ever, and to score big in class he needs to find a way to turn his boring life into the inspiration for a work of art. In order to accomplish his goal, Rafe decides to try doing lots of new things like learning to play poker and going to a modern art museum....

Rendered a ghost by a bicycle accident, young Finn McAllister teams up with fellow spirit Isabella Rojas to commit invisible pranks on the living, before discovering that they cannot move on to the afterlife.