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The team searches for a border-crossing serial killer who targets prostitutes and the homeless.

Criminal Minds

... And Back

To Hell ...

The team searches for the source of a toxic substance that is released into the public.

Amplification

The team suspects that a series of vehicular homicides may be the work of a serial killer.

Roadkill

A serial killer (Alex O'Loughlin) sends the team a videotape, detailing one of his crimes and asking them to help him stop his murderous ways.

The Big Wheel

While reviewing a series of child abductions and murders, the team realizes that one of the cases may not actually be the work of the person charged.

A Shade of Gray

The team searches for a serial killer who is targeting coeds on spring break.

Conflicted

The team hunts for a serial arsonist who targets community meeting places in a small town, resulting in the deaths of several residents.

House on Fire

BAU agents go to Boston to search for one of the most notorious serial killers in New England, who strikes again after a 10-year hiatus.

Omnivore

The team investigates a series of deaths with religious overtones; Agent Prentiss has a personal connection to a victim.

Demonology

The team searches for a female serial killer who targets high-powered executives.

Pleasure Is My Business

WE tv HD

The team hunts for a copycat serial killer who is recreating the techniques used by famous killers of the past.

Zoe's Reprise

An elite squad of FBI profilers analyzes the country's most-twisted criminal minds, anticipating the perpetrators' next moves before they can strike again.

S4 E17 | Demonology

E26 | ... And Back

E25 | To Hell ...

E24 | Amplification

E23 | Roadkill

E22 | The Big Wheel

E21 | A Shade of Gray

E20 | Conflicted

E19 | House on Fire

E18 | Omnivore

E17 | Demonology

E16 | Pleasure Is My Business

E15 | Zoe's Reprise