As a prisoner in one of the most brutal facilities imaginable, Shane Bridge thought that he'd seen it all. Surrounded by murderers, rapists, gangsters, and pedophiles, Shane had managed to survive his three years in one piece. With parole just around the corner, and his wife and daughter at home awaiting his return, Shane has high hopes for the future. When a new inmate is brought in, carrying with him a deadly virus, Shane soon realizes that his plans, his release, and his very survival are in jeopardy. With the virus spreading, turning guards and inmates into flesh-eating zombies, it's up to a few survivors to figure out how to escape the facility, how to get along - and how to stay alive.