A killer releases a deadly virus into the open air, and one of the agents risks his life to stop the threat. Lee Whitworth: Dan Lauria.
Part 1 of 2. The team hunts for a serial killer in Detroit who targets those on the fringe of society.
Conclusion. In the fourth-season finale, the team searches for the killer in Canada, and an agent's life is threatened.
In the fifth-season opener, Hotchner vanishes while the team is profiling a killer who's targeting an emergency-room doctor. C. Thomas Howell.
When a man goes on a killing spree at a pharmacy, the team tries to find out what set him off so they can find him before more people are hurt. Darrin Hall: Sean Patrick Flanery.
A case in Rossi's hometown has his personal and professional lives overlapping. Heather Vanderwaal: Cynthia Watros.
The team profiles a group of killers who travel as a pack and chose victims randomly. Tamara Barnes: Salli Richardson-Whitfield.
A young boy disappears in San Diego on Halloween, just as another boy who vanished one year earlier suddenly reappears.
A remorseful killer with an uncontrollable urge to murder people is hunted in northern Virginia. Meanwhile, Rossi receives a visit from a woman who may hold a secret from his past.
A triple murder in Salt Lake City prompts a search for a connection between the victims, which leads to a fugitive who may be linked to the killer.
Brides-to-be are murdered on the eve of their nuptials in Savannah and a jilted lover is suspected.
The team profiles a serial killer who impregnates women and kills them after they give birth.
The team searches for a serial killer who removes his victims' eyes.
The team tracks a serial killer who seems to follow the touring schedule of a Goth rock star (Gavin Rossdale), and the team suspects that the performer has become lost in his own stage persona.
A serial killer who murders entire families is tracked, and the team seeks advice from one of the most vile criminals from the past, "The Fox."
The Reaper (C. Thomas Howell) returns to terrorize Hotch and his family.
Hotchner leaves the BAU temporarily to contemplate his future there, while the team investigates a home-invasion case without him. Erika Silverman: Rena Sofer.
An ex-con escapes while in the custody of the BAU, and the team must review his criminal career in order to determine where he may have gone.
The team profiles an unsub who abducts specific types of women to satisfy a personal obsession.
The team travels to a small Wyoming town to investigate a series of teen suicides.
The team profiles a con artist whose descent into mental illness is prompting him to kill people involved in his scams. Rebecca: Annabeth Gish. Agent Goldman: David Eigenberg.
A serial killer murders his victims in public places, hoping to cause widespread fear.
A child-abduction case has similarities to an unsolved eight-year-old abduction case, leading the agents to believe that they may be able to solve both crimes.
The team profiles a truck driver who abducts women. Gabrielle Carteris guest stars.
Download the TV Guide app for iPhone, iPad and Android!