Brodie was a good dog. And good dogs go to heaven. Except Brodie cannot move on. He cannot forget the boy he left behind. The boy he loved, and who loved him in return. The boy who is still in danger. So Brodie breaks the rules of heaven. He returns to Earth as a spirit. With the help of two other lost souls: lovable pitbull Tuck and surly house cat Patsy: he is determined to find his boy and to save him. Even if it costs him paradise. Because it is what a good dog would do.