Serial-profiler Frank Black has the unique ability to see into the minds of killers. After leaving the FBI he joined the Millennium Group, a covert team of ex-law enforcement experts battling the growing forces of evil in the world - or so he thought. When a deadly viral outbreak spreads across the country killing thousands of people, including his wife, Frank discovered it was all part of a plot by the group. Now, disillusioned and outraged, Frank returns to the FBI with a new resolve to expose the Millennium Group. But protecting his job and daughter, who Frank fears shares his gift, is no easy task when there are those who believe that if he is not a part of the group there is no reason for him to be allowed to keep using his gift against them.