People have always thought that the undead would come from hell - that they would rise from their graves to bring their torments upon the earth. They never thought that they would come from the heavens instead and rain upon the world like divine judgment.

Ten years had passed since that day. Evan had thought that he had seen all there is to see. What remained of civilized society couldn't recover. Millions of zombies wandered in every city, and thousands more roam the countryside. Every day was a struggle to survive just as it had always been. He, as well as most of the survivors that remained on earth, had resigned themselves to a life of wandering until their deaths. Their last hope was news of an underground settlement being constructed to the far west, outside the eyes of the wandering and falling undead.

But then they encounter a girl who had survived in the middle of a heavily-infested city. She claims that she knows of a way to end the apocalypse once and for all. What should he and his group do?