After a routine supply run ends in tragedy, Dan begins to question his skills as leader. Seeking to clear his head, he wanders off on his own. He awakens in what seems to be a peaceful setting, but is soon reminded of the state of the world when he is reacquainted with an old "friend". Dan and his group suddenly find themselves on the radar of another group; one whose intentions and lifestyle are a danger to all who stand in their way. In order to keep his friends safe, Dan must lead an expedition to retrieve three of them from the grasp of this new enemy. He will soon discover that the mutant horrors that walk the earth are not the only things to fear. Sometimes the worst monsters are other survivors.