As the walkers Roam the Prison, T dog, you and Carol are separated from the rest of the group. T Dog, being the hero he is starts to lock the gates of one of the sections holding a horde while Carol runs into a small door nearby. You are about to see where Carol went until you notice a walker creeping up on T Dog. Wasting no time, you shoot the walker in the head, saving T Dog as he locks the gate. T Dog: Oh shit… Thanks dude, you saved me