Jack ambled along the tracks for days. Maybe weeks. He doesn't think about it. Probably because he has lost his mind. The walk is tough. He kind of toddles with a hitch, dragging one leg behind the other. He's looking for something, but, he doesn't know what. He's hungry. Extremely hungry. His jaws are continuously opening and closing. Then, just like that, his head is separated from his body and he is staring at his feet. Rick and Michonne continue walking down the tracks.