Olivia and her dog Barkley are inseparable. He’s her sidekick, her partner in crime-fighting—they’re the perfect pair. But then, Barkley dies and Olivia is heartbroken. Gradually, however, she realizes that Barkley wouldn’t want her to be unhappy for the rest of her life. So she thinks of a way that she can not only get her own happiness back, but also give happiness to another animal, by adopting a new dog.