The sequel to Miracle Dogs, Miracle Dogs 2 introduces us to Zack, a curious 10-year-old boy whose one goal is to do something heroic one day. Shortly after moving into a new town with his divorced mom and his big sister, Zack discovers a pair of abandoned dogs. In time, he realizes that they have seemingly miraculous healing powers. Zack wants to keep the adorable animals, but his sister is afraid of dogs. He also soon discovers that a pair of dangerous misfits is determined to steal the magical canines from him, and he is haunted by the fact that, somewhere out there, the real owners might be looking for their lost dogs. What is a boy to do? Zack sets off on a brave course of action that will forever affect the lives of those around him.