Now that Daniel Funk has finally figured out what makes him shrink to the size of his fourth toe, he and his tiny twin brother, Pablo, can go on all sorts of mini adventures. They make a list of fun things they can do when they're small: snowboarding down an ice cream sundae, trampolining on a marshmallow, and more. When the Science Club has a model-rocket launch, they have a great idea: They'll launch themselves for the rocket ride. But when Daniel's rocket crash-lands in the La Brea tar pits, things get sticky. Will Daniel become an ittybitty fossil?