When the call center she works at is overwhelmed by an army of zombies, Sheila Noyce finds herself stranded on the far side of Louisville, Kentucky from the home where she left her husband and daughter earlier that morning. Yet even if she can somehow make her way back to them, and even if her family is still alive -- how can they hope to survive, in a city that is rapidly becoming an open urban grave filled with screaming hordes of the ravenous dead?