Twelve-year-old Finn endures daily torment from the bullies at his school. But his life begins to change the day that he encounters a Labrador retriever named Marshall. He finds the dog being held in deplorable conditions, at the mercy of an animal hoarder who keeps 60 dogs penned up on her isolated ranch. The boy sees something of himself in Marshall: both are bullied, but both are brave. Finn pulls off a daring rescue, saving Marshall from the dogs that are attacking him.