Lizzie and Charles Peterson know a lot about puppies. That's because the Petersonsare a foster family for young dogs. They have an adorable puppy of their own, Buddy, but they still love helping other puppies find homes. Then Lizzie and Charles meet Scout, a gentle German shepherd who is very good at helping people. A puppy like Scout needs a special owner. Can the Petersons find the perfect person?

Twin sisters who already compete for their mother's attention have an especially hard time after their baby sister is born.