In the year 2154, the world has become a dangerous place. Extremist groups would like nothing better than to wipe out humanity completely, and even the people sworn to defend civilization against such threats have become deeply corrupt and untrustworthy.
When a virulent plague destroys all warm-blooded life on Earth, a small band of survivors clings to life on the partially-terraformed Moon. But fresh dangers lie in wait for the unwary; nor have they left behind all the wickedness in the hearts of men.