When Garcia and Reid are abducted by messianic cult leader Benjamin Merva, the BAU struggles to balance their duty towards their teammates and their attempt to stop Merva's plot.
As Rossi reconnects with his ex-wife, Krystal, the BAU is forced to trace evidence that goes back 20 years after the mummified remains of 9 women are found in a remote cabin. They enter a race against time when they discover that the killer has a specific schedule for his murders.
When packages containing dismembered body parts are delivered to six women, the BAU has a three-fold mission: identify the victims, find out the connection between the recipients, and identify the Unsub.
As Prentiss grows concerned about how Garcia is dealing with the trauma of her abduction, the BAU is called in by the local authorities in Tallahassee to help solve the ritualistic murder of a woman who was bludgeoned to death.
When two teenage girls go missing with the third reappearing with no memory of what happened, JJ reluctantly goes back to her hometown to help solve the case where she is forced to reckon with a past personal tragedy.
When a serial killer goes on a killing spree along the East Coast, the BAU discovers that the murders are tied to one of their own as the hunt becomes personal for Luke.
The BAU races against the clock to find a vigilante who is attacking people with a machete every 27 minutes in Washington.
When a couple is killed and their daughter is abducted, the BAU's investigation reveals an Unsub haunted by the ghosts of his past.
Lewis is forced to reckon with her past when it comes calling. The BAU is tipped off to a possible Angel of Mercy who is killing people struggling with their addiction as a way to ease their suffering.
Prentiss's plans for a date are interrupted when a new case involving a slew of murdered businessmen recalls an old incident from her past.
When a seemingly blind man stumbles to a house shouting for help, the BAU starts to look into the disappearance of a couple that may just be linked to a double homicide that occurred a week earlier.
The BAU investigates the case of 3 missing children who willingly got into their kidnapper's van.
A hunt for an elusive serial killer in Tennessee brings Rossi to his breaking point after a nearly fatal encounter.
As Rossi deals with the aftermath of Everett Lynch's escape, the BAU hunts a serial killer who kills those he believes are haunted.
As Rossi prepares to marry Krystall, the BAU's investigation of an Unsub who kills his victims after car accidents prompts an unexpected confession that puts JJ and Reid's friendship on the line.