A group of survivors take refuge in a shopping mall after the world is taken over by aggressive, flesh-eating zombies.
Navy SEAL Shane Wolfe is handed a new assignment: Protect the five Plummer kids from enemies of their recently deceased father -- a government scientist whose top-secret experiment remains hidden in the kids' house.
In the future, medical technology has advanced to the point where people can buy artificial organs to extend their lives. But if they default on payments, an organization known as the Union sends agents to repossess the organs. Remy is one of the best agents in the business, but when he becomes the recipient of an artificial heart, he finds himself in the same dire straits as his many victims.
