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.

"Wheelchair-bound middle school student Jamie Grimm's recent victory in the Planet's Funniest Kid Comic Contest leads to a television sitcom based on his life, but being the star of the show forces him to balance his newfound success with the responsibilities of being a good friend." --

When a new principal threatens to close the school library, Jamie Grimm tries to save the day by teaching a comedy class for his fellow students.

When Rafe is invited to attend an all-expenses paid art field trip in California, he jumps at the opportunity, but things go sideways, as they always do for Rafe, after he realizes he'll be participating in a "Cultural Campout" in the desert. A series of unfortunate events follow, including an encounter with a cranky crocodile, a claustrophobic trip into an ancient cave, and a plot to smuggle a legendary missing diamond.