In this thrilling conclusion to the Zooey Zombie series, Zooey's world falls apart. Her once-friend Ren forces her to take a serum that transforms her back into a zombie. But she's not any ordinary zombie. She's a super zombie who can think, talk, react, and is the perfect killing machine. Zooey fights her zombie urges as she's taken back to the Undead Ward for study and arrest. While there, she discovers she's not the only one Ren turned. Can she find a way out of the Undead Ward to stop Ren before he destroys the world with his new serum?