Mara Madigan is a pregnant police officer about to go on maternity leave. But on her last day on the job, she wakes up to a world ravaged by a nightmarish and bloody plague of the living dead. Amidst the chaos and violence, she finds Ben Neilson, a man who is virtually blind, helpless, and has a mystery shrouding his past. Somehow these two must put their heads together and find a way to escape this living hell.