Hudi needs to lose weight, according to his doctors. Concerned about the serious medical issue Hudi had when he was younger, his parents push him to try out for sports. Hudi would rather do anything else, but then he meets Chunky, his imaginary friend and mascot. Together, they decide to give baseball a shot. Hudi has found the cheerleader he never had, as Chunky cheers him on even when Hudi barely makes the team. Baseball doesn't go well (unless getting hit by the ball counts), but the two friends have a great time drawing and making jokes. While Hudi's parents keep trying to find the right sport for him, Chunky encourages him to pursue his true love-comedy. But when Hudi's dad loses his job, it gets harder for Hudi to chart his own course, even with Chunky's guidance. Can Chunky help Hudi stay true to himself, or will this friendship strike out?