When James Bowen (Treadaway) found an injured, ginger street cat curled up in the hallway of his homeless shelter, he had no idea just how much his life was about to change.James was living hand-to-mouth on the streets of London and the last thing he needed was a pet. Yet James couldn't resist helping the strikingly intelligent tomcat, whom he quickly christened Bob. He slowly nursed Bob back to health and then sent the cat on his way, imaging he would never see him again. But Bob had other ideas. Soon the two were inseparable and their diverse, comic and occasionally dangerous adventures would transform both their lives, slowly healing the scars of each other's troubled pasts.