A series of rolling blackouts in the city of Los Angeles lures a serial killer out of hiding, giving him renewed opportunities to continue his killing spree.

Episode Guide

The Internet Is Forever

Season 5, Episode 22 - Air Date: 5/14/2010

The BAU team profiles a serial killer who uses the Internet as his hunting ground, bringing a whole meaning to the term "social networking".

Episode Guide

Exit Wounds

Season 5, Episode 21 - Air Date: 5/7/2010

Garcia plays a crucial role in a case when she travels to Alaska with the BAU team to investigate the murders of several members of a small town.

Episode Guide

...A Thousand Words

Season 5, Episode 20 - Air Date: 5/4/2010

The BAU team must profile a serial killer covered in tattoos who commits suicide, but leaves clues to the whereabouts of his last victim.

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Rite of Passage

Season 5, Episode 19 - Air Date: 4/9/2010

The BAU team heads to Texas to track a serial killer targeting illegal immigrants attempting to make safe passage into the U.

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The Fight

Season 5, Episode 18 - Air Date: 4/7/2010

The BAU team travels to San Francisco to investigate the murders of several homeless men and teams up with a separate group of BAU operatives who are working another case they think is connected.

Episode Guide

Solitary Man

Season 5, Episode 17 - Air Date: 3/8/2010

A truck driver is kidnapping women and disposing of them in random locations and the BAU must find out his motive in order to catch him.

Episode Guide

Mosley Lane

Season 5, Episode 16 - Air Date: 2/25/2010

The BAU is called by local authorities in Ashburn, Virginia, to profile a predator who may have been abducting children for at least eight years.

Episode Guide

Public Enemy

Season 5, Episode 15 - Air Date: 2/10/2010

A serial killer who targets random victims in highly visible places to create a sense of public fear is the subject of a BAU investigation.

Episode Guide

Parasite

Season 5, Episode 14 - Air Date: 2/3/2010

The BAU follows the mental decline of a con artist whose schemes have become so complicated that he begins to eliminate the people involved in them.

Episode Guide

Risky Business

Season 5, Episode 13 - Air Date: 1/20/2010

A rash of startling teen suicides in a small Wyoming town is the focus of a BAU investigation.

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The Uncanny Valley

Season 5, Episode 12 - Air Date: 1/13/2010

An unusual personal obsession is at the center of a BAU abduction case. Meanwhile, Hotch struggles with his return to work.

Episode Guide

Retaliation

Season 5, Episode 11 - Air Date: 12/16/2009

The BAU is called upon to profile the past of an ex-convict and help stop him after he escapes from custody and embarks on a violent killing spree.

Episode Guide

The Slave of Duty

Season 5, Episode 10 - Air Date: 12/8/2009

The team needs to reunite in order to solve a home invasion case, while Agent Hotchner may have to leave the team.

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100

Season 5, Episode 9 - Air Date: 11/25/2009

The BAU team races to help Hotchner find The Reaper and save his family before it's too late.

Episode Guide

Outfoxed

Season 5, Episode 8 - Air Date: 11/18/2009

The BAU team is tracking down a family annihilator, but needs to take a break from the case to get advice from "The Fox", who is an horrific killer from the team's past.

Episode Guide