Rick and his team teach the prisoners how to dispatch zombies – aim for the head, always. Rick instructs his recruits to keep a tight formation, but the newly-freed prisoners revolt, prison-riot style. They break formation and go medieval on a herd of zombies, refusing to adhere to Rick's instructions. During the scuffle, a walker bites Big Tiny. Rick pauses, unsure of how to take care of this newest victim – he doesn't know Big Tiny well enough to end his life, and the bite is not in an easily-amputatable location. While Rick hesitates, wild-eyed and confused, Tomas lurches forward. Tomas bludgeons Big Tiny to death with psychopathic fury, considering Big Tiny was his ally mere moments ago. As Tomas slashes and hacks, we realize that he is definitely in prison for more than just petty larceny – this is one crazy dude and he is definitely not a nice guy.