Eleven-year-old Carly Bean Bitters, an orphan, can only sleep during the day and feels very lonely until she meets a rat, Lewis, and sets off on an adventure to figure out what is threatening the woods and its inhabitants.
Rat brothers Louie and Ralphie Ratso try to prove they can be as rough and tough as their father in the Big City, but every time they try to show how tough they are, they end up accidentally doing good deeds instead.