Emma is seduced by the sinister Millennium Group, while Peter Watts continues to sabotage Frank's work at the FBI.
The Millennium Group wants to secure a foothold in the FBI, endangering Emma and Frank's partnership.
Frank and Emma investigate crimes in the small town where she grew up.
Frank thinks he is going crazy after receiving photographs of himself drowning that play upon his fears of a childhood accident.
Danger for a former Millennium Group member prompts Frank and Emma to research the organization's past.
An escapee from a mental hospital takes a deputy sheriff hostage.
Jordan's special ability begins to ruin her life.
Religious fundamentalists kidnap a pregnant woman.
Frank and Emma learn more about Millennium Group's origins and history.
Lucy Butler, the devil made flesh, returns to taunt Frank as he investigates a series of mysterious homicides.
A mysterious woman tells Frank she has knowledge about his wife's death.
Frank's suspicions about the Millennium Group are rekindled when the daughter of Peter Watts is kidnapped.
Frank and Emma try to figure out how people drowned on dry land.
A dead hit man helps Frank's daughter, Jordan, deal with her mother's loss.
Frank tries to clear Emma's name when she is placed under investigation while trying to help her half sister, who is caught in a drug trafficking ring.
Frank suspects a convicted killer/child molester is not responsible for a girl's disappearance.
Agent Hollis and Peter Watts investigate human remains found buried beneath a highway; Frank finds that the Millennium Group is linked to a series of crimes.
The rock band KISS is caught up in an investigation of murders on a movie set.
Emma must confront her own demons to battle a killer who seeks out troubled victims.
Frank encounters a doomsday cult planning for Armageddon.
Frank learns the crash deaths are linked to a top-secret parapsychology experiment run by Millennium Group.
Frank investigates a mysterious plane crash in which the victims are women and children who all look alike.
Frank works with a competing organization in a dangerous investigation.
Lara Means disappears, and Frank's investigation leads him to Watts.
Demons bemoan the existence of Frank Black.
The world's brightest children are abducted for the devil's army.
Catherine agrees to help troubled teens and finds herself working with Lara Means.
Frank and Watts hunt down two escaped convicts from a women's prison and discover one is pregnant.
A mysterious woman tries to lure Frank away from the Group.
The dissident faction is really a sinister group that threatens the existence of the Group.
A dissident faction within the groups absconds with an artifact with mystical powers.
Investigation of a series of homicides points to inmates from a nearby insane asylum.
A killer broadcasts his deeds on the Internet.
Frank Black searches Alaska for a missing teenager.
Frank and Lara Means investigate a series of assisted suicides.
Jordan admits having contact with her dead grandmother; Frank confronts a painful secret from the past.
Frank and his team protect author Jose Chung (Charles Nelson Reilly) whose expose has endangered his life.
Frank, Watts (Terry O'Quinn) and Andrews (CCH Pounder) head to the bogs of Germany to search for the ancient roots of the Millennium group.
Frank tracks down a prophet who believes a world war has begun; guest Kristen Cloke.
Frank's evening of trick-or-treating with his daughter turns nightmarish.
Frank (Lance Henriksen) investigates a homicide at the site of an American Indian burial ground under excavation. Amy Steel guest stars.
Frank becomes a suspect in a child-abuse investigation.
Frank discovers an alarming secret while pursuing a patient carrying a deadly disease.
Animal attacks terrorize a community.
The group sets out to rescue Frank's wife from the camera-wielding stalker.
Frank's murder investigation in Washington, D.C., alters the Black family.
Frank investigates mob-style killings in New York's Russian community.
Frank investigates the serial mutilation of animals, hoping to catch the person before people become victims.
Frank reluctantly agrees to investigate a series of satanic killings that appear to have a connection to the recent death of his friend.
Frank's mission to recapture a serial killer leads him to believe the criminal's target is close to home.
When Frank suffers a mysterious memory loss he is convinced that someone died.
Frank must testify against a confessed killer on death row, though he concludes that the man could not have committed the crime.
A dangerous kidnapper abducts Frank's brother's wife.
Frank confronts a painful memory when an imprisoned killer repeats his crimes.
Frank believes an apocalyptic force is driving a serial killer.
A local detective, unnerved by a series of sex crimes, complicates Frank's investigation of the case.
Teenage boys disappear from a high-security neighborhood, leading Frank to suspect a member of the community.
Investigating a state trooper's death, Frank concludes the police suspect the wrong man.
Frank investigates the disappearance of a little girl who saw the murder of her parents.
Catherine asks for Frank's help when she tries to help a troubled woman revealing dark, family secrets.
Frank tracks down a killer who preys on the bereaved.
Frank hunts for a killer involved in religiously motivated murders as he struggles with Ardis Cohen (Lindsay Crouse).
Frank races to save Washington from a terrorist bomber.
Frank tries to solve a baffling series of murders.
The desperate search for a vicious killer takes an unexpected toll on Frank and his partner (James Morrison).
Frank Black investigates the disappearance of a young man whose death makes him face evil.
A former FBI agent (Lance Henriksen) with unique crime-solving abilities works for an underground task force to catch psychopathic killers; with Megan Gallagher.