Suddenly feeling too old to be collecting toys, Boy gives up his bobbleheads and decides to do the things that grown-ups do instead. The others desperately try to turn Boy back into his slightly more interesting self by taking him to meet the owner of the world's biggest collection of bobble heads, where Boy must choose between what he thinks is cool and what he loves.

Cat decides that she wants to become a superhero, and the other kids decide to help her follow her dream. Girl makes her a cool costume and Mouse creates some superhero gadgets, now all Cat has to do is find somebody to save!