Charles and Lizzie Peterson are very good with puppies. They want one of their own, but their mom isn't ready for them to have one full time. So for now, they take care of puppies that need help finding new homes. The Peterson kids hear about Snowball. Someone left the fluffy puppy all alone at the gas station. Snowball is sick and hungry. He needs a family of his own. Can Charles and Lizzy find one that is just right?