Shep has led his pack through the storm, through their abandoned city, and through vicious battles with the wild dogs. He has become a true alpha- but now the humans have returned, and everything Shep has build is falling apart.
The other dogs ant to go back home; they want to find other families and go back to being pets. But Shep isn't sure if that's what he wants. He's changed so much since he last saw his boy. How can he go back to a leash, now that he knows what it's like to be free?