Professor Wilson discovers a lost Akita puppy on his way home. Despite objections from his wife, Hachi endears himself to the family and grows to be Parker's loyal companion. As their bond grows deeper, a beautiful relationship unfolds.
Through his bond with his owner, aspiring Formula One race car driver Denny, golden retriever Enzo learns that the techniques needed on the racetrack can also be used to successfully navigate the journey of life.