What would you do if you were in prison and the zombie apocalypse happens? For John and Mike, the answer is simple...you do whatever it takes to survive. They have to somehow get out of prison, find food, weapons, and other supplies, the whole time trying not to get eaten by skin eaters or killed by other humans. In the midst of everything, they have to go into towns that are over-run to find their family and friends...praying that none of them have been turned.