Old Dog is an elderly rescue dog with extraordinary insight, and an urgent message for humankind. As his current caretaker works on various writing projects, Old Dog reminisces about his own past: his joyful youth, bleak years chained to a porch rail, a heartrending abandonment on a remote highway, life among the homeless, a formal education by a woman struggling with mental illness, his time with a pack of feral dogs, his capture and confinement...