A viral outbreak turns those who are infected into the walking dead. Soon, the undead are contained, being kept in a maximum security prison. However, those who contained the undead are also trapped in this zombie-infested prison. Their only hope is to escape; but once you're inside this prison, there's really no way of getting out safely.

A group of friends decide to throw a Bachelor Party in the mountains; little do they know an escaped killer is on the loose ready to kill the party.