Leo Flynn is the last human. He is bound to the Humanity Revival System for a procreation mission. His blood can purify zombies. He takes in Campus Belle Coco Summers, nurse Angela White, yoga teacher Maeve Willow, and childhood sweetheart Claire Sutton. All four women awaken special powers, becoming his companions and fighting force. Dr. K and Zero launch attacks. Leo and his four partners struggle to purify the virus, end the apocalypse, and rebuild their home, start human revival.
