A band of humans led by a former police officer attempt to navigate a world filled with flesh-eating zombies. The zombie Apocalypse, set off by an unknown event, has left the entire earth unscathed. The group wonders from place to place attempting to set up some semblance of a viable existence. With nerves frayed and psyches teetering on the edge, their situation becomes more and more precarious. They eventually find that are other forces even more threatening than the zombies