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Season 12
22 episodes
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E01
Agent Luke Alvez joins the BAU team, which is tasked with capturing a serial killer who escaped prison with 13 other convicts.
E02
When JJ arrives home shaken after a rough case, she breaks down and tells her husband about the abduction of two children.
E03
The BAU welcomes back Emily Prentiss as they are called upon to investigate the disappearance of three women.
E04
The BAU team searches for a serial killer along the Appalachian Trail in rural Virginia.
E05
The BAU investigates if bullying may be the link between two high school students who are the sole survivors after both of their families are killed.
E06
When three children disappear while riding their bikes on the same path as a similar unsolved disappearance 30 years ago, the BAU team comes in to investigate.
E07
The BAU team opens an investigation when a man who fully believes he's Dr. Tara Lewis' brother arrives in town, knowing everything about her and her family, and she is unable to make contact with her real sibling.
E08
When the remains of twelve people are found lying on the bed of a creek, the BAU travel to Yakima, Washington, to find the killer. Also, veteran profiler Stephen Walker from the Behavior Analysis Program joins the BAU.
E09
As Rossi conducts a profiling course on his birthday, he receives a call from his serial killer nemesis, Tommy Yates, telling him the location of his latest victim.
E10
The BAU team investigates a series of home invasions in upscale neighborhoods in San Diego involving casualties.
E11
When a mysterious hieroglyph found under a deceased homeless man's armpit is the same from a previous casualty, the BAU is called in to investigate. Also, Reid decides to take his mother out of a clinical study early to bring her home with him.
E12
The BAU team is called in to investigate when male victims are found with no way to identify them.
E13
When a BAU member gets in trouble in Mexico, the team enlists the services of the International Response Team for their help.
E14
The BAU investigates the cause of several fatal car crashes involving drivers and pedestrians. Also, Reid gets bad news.
E15
The BAU investigates when several young men and women are victims of disfiguring acid attacks. Also, Dr. Reid begins to settle into his new surroundings.
E16
A mother steps forward with valuable information for the BAU to aid in their investigation of an UnSub known as The Bone Crusher. Also, Reid must adapt to a new set of rules in prison life.
E17
The BAU believes two UnSubs may be operating at the same time, when victims killed in two drastically different ways are discovered in the same city. Also, the team grapples with keeping Reid safe in prison.
E18
The BAU investigates an urban vampire in New York who kidnaps his victims at night and holds them underground in the sewer system. Also, Reid makes an impossible decision in prison that severely affects himself and other inmates.
E19
The BAU is called after three victims are found tied to stakes in the Arizona desert.
E20
When several federal government employees, including a close friend of Walker's, succumb to symptoms of a heart attack, the BAU investigates. Also, Reid anxiously awaits his trial date.
E21
When Reid fears his mother has been abducted, he asks the BAU to investigate while he's stuck in prison.
E22
Caught in an impossible situation, Reid must face an old nemesis. Meanwhile, Derek Morgan comes to the team with a lead that might help catch Mr. Scratch, the elusive fugitive that has been tormenting the team.