Assistance Is Futile
When three women in New York City are found dead with several bones broken, the BAU works with a single mother (Tatum O'Neal) who believes that her son is behind the heinous crimes. Meanwhile, Reid faces a difficult decision after a fellow inmate is threatened.
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More from this season
S12 E1
The Crimson King
Agent Luke Alvez (Adam Rodriguez) joins the BAU team, which is tasked with capturing a killer who escaped prison with 13 other convicts at the end of last season.
S12 E2
Sick Day
When JJ arrives home shaken after a rough case, she breaks down and tells her husband about the abduction of two children.
S12 E3
Taboo
The BAU welcomes back Emily Prentiss as they are called upon to investigate the disappearance of three women
S12 E4
Keeper
The BAU team searches for a serial killer along the Appalachian Trail in rural Virginia.