The BAU team searches for a serial rapist in Houston known as "The Piano Man" who has resurfaced and is assaulting his previous victims. Also, Prentiss tries to come to terms with her trauma from last year and with rejoining the team.
Foster’s former patient, one of the founders of a social-networking app, comes to the Lightman Group when she thinks she’s being squeezed out by her partner. When she turns up dead a short time later, Lightman fights against the prevailing evidence to expose the truth behind the murder.
The Graysons try to protect their own, as suspicion grows about the shooting of Emily Thorne.
A media frenzy erupts when an Iowa teen disappears during her school trip, and the prime suspect is the son of a powerful judge.
Part 2 of 2. A Midwestern teenager disappears during a school trip to New York, and a related missing young woman leads them to the son of a high powered judge, who finds himself on the wrong side of the law.