The BAU team members head to Detroit, Michigan where two men in two weeks have been discovered dead. Both were married, Caucasian, mildly successful professionals. Both were found in very public places hanging by a meat hook, naked and their private parts cut off pre-mortem. The authorities eventually receive a snuff movie of the second victim, Curtis Wyler, including the entire time it took him to bleed out to death. The team analyzes the video in order to find any clues as to the unsub's whereabouts. Garcia discovers that both men had been systematically withdrawing large sums of money from their bank accounts, small enough not to be questioned by the banks. In questioning the Wyler's wife, the team believes that both men were probably using the money for the services of an escort. What Garcia finds is that it is not an escort service, but rather an online dating site, Blue Siren, where members arrange their own meetings. Both victims had been involved with the same member, a woman with the online handle Dasha, who had recently discontinued her membership. The team is able to locate Dasha, who admits to her involvement with the victims, but does not know why anyone would want to kill them. She is concerned that the unsub may be after her. The unsub is after her, but not in the way that she anticipates.

El BAU se hace cargo de una situación de rehenes en un bufete de abogados en D.C., donde trabaja la esposa de Matt Simmons, Kristy.

The BAU must determine what connects six people that each received a mysterious package in order to identify the Unsub. Also, Simmons and his wife Kristy must deal with their son, who got suspended from school.

Las campanas de boda suenan mientras Rossi se prepara para casarse con Krystall. Pero primero, el equipo de la BAU viaja a Los Ángeles para investigar una serie de tiroteos mortales a plena luz del día después de accidentes automovilísticos.

El equipo busca a varios asesinos en serie. Uno que remueve los rostros de las mujeres y otro que corta los torsos de los hombres. J.J. y Spencer siguen afectados después de su confesión. La vida de J.J. está en peligro.

The BAU investigates seemingly random fatal explosions throughout Kentucky and Tennessee.

Los miembros de la Unidad de Análisis de Conducta (BAU) disfrutan de un sábado libre de maneras muy diferentes. Mientras Rossi y Prentiss ayudan a Simmons a armar una nueva cuna, Garcia lidera una competencia de piratería informática, y el Dr. Reid entabla una conversación con una mujer llamada Maxine.

Series Finale. Following an explosive face-to-face encounter with Everett Lynch, Dr. Reid suffers from a brain injury and, while experiencing hallucinations, is visited by ghosts from his past. Also, the BAU makes a shocking discovery about Lynch that affects Rossi personally, and the entire BAU team comes together to celebrate Rossi's retirement.