An ex-special services veteran, down on his luck and desperate for work, takes a job as a security guard at a run-down mall in a rough area of town. On his first night on the job, he opens the door to a distraught and desperate young girl who has fled the hijacking of a Police motorcade that was transporting her to testify as a witness in a trial. Hot on her heels is the psychopathic hijacker and his team of henchmen, who will stop at nothing to extract and eliminate the witness.

In a world overrun by zombies, military personnel and survivalists live in an underground bunker while they seek a cure.