When Annie Tisman opens a parcel containing a human tongue, Bob Bletcher asks Frank Black for help. This is the fourth package within the last four years containing fingers or other members cut from living victims - but no bodies were ever found. When Cheryl Andrews, expert pathologist of the Millennium Group, checks the tongue she discovers that it has been removed postmortem - the hugger has changed his MO. When Bardale, a career criminal, is released from prison, a man who introduces himself as the Judge makes him an offer - to carry out his verdicts in exchange for immunity. His first job: to hug his predecessor, a man named Carl Nearman who botched the last job, the killing of former police officer Jonathan Mellen. Mellen's body is discovered in the woods. When Frank visits the morgue, Carl Nearman's body is on the table. In a vision he sees a connection between Mellen and Nearman. When Catherine tells him that Annie Tisman's husband died twelve years ago in prison where h
Frank has a special ability to see into the minds of serial killers. Working for a mysterious organization called the Millennium Group, who take a special interest in serial killers and the millennial end of the world prophecy.
During the first season, Frank lives with his wife Catherine and daughter Jordan in Seattle. The show focuses on Frank's work as a profiler. The first season focuses most of Franks' time trying to solve serial murder cases.
During the second season, the show primarily on Frank's relationship with the Millennium Group. After separating from his wife after a violent rescue of her from a stalker. Frank learns that the Millennium Group is a secret society that believes that the world is coming to an end. During this season, Frank spends much of his time working with Millennium Group member Peter Watts and fellow investigator Laura Means.
After the death of his wife at the end of the second season, Frank severs all connection with the Millennium Group and returns to work with the FBI. With the help of special agent Emma Hollis, he begins to investiagate the Millennium Group itself.