After the moon was hit by a large asteroid it was thrown off course and now earth's environment has been altered on its entirety. With this humanity is coming to an end. Ad least they were until a group of doctord came forth with a new series of shots, that would help the immune system against the harsh surroundings of the outside world. Last month a man came forth claiming only three of the four were for health and that the last was for the government to spy on you. He was written off as crazy by most except for Gray Johnson and Susan Daily.