In a world overrun by the undead, with no experience in parenthood and an empty past that haunts her every step, Vicki is the last person you'd expect to be a caregiver. A borderline alcoholic struggling to keep her own demons at bay, she's suddenly thrust into the role of protector for two young children. But just as they think they can take a breath and relax, tragedy strikes, leaving Vicki and the kids alone with a mysterious newcomer...