When you are about to breathe your last breath and the Grim Riper is knocking on your door, it's good to have a brother by your side.
When Sonny, former Road Dogs president, is down and out with cancer and about to cross over to the other side, Cave Man comes back to bring a brother home; to fight off the Grim Reaper and a band of evil little demons that are trying to drag Sonny's soul to hell.
