The team pursues a copycat serial killer who is recreating the techniques used by past famous murderers.

As Rossi, Morgan and JJ profile a killer who is targeting an emergency room doctor, Prentiss realizes that Hotch is missing.

The BAU follows the mental decline of a con artist whose schemes have become so complicated that he begins to eliminate the people involved in them.

Garcia plays a crucial role in a case when she travels to Alaska with the BAU team to investigate the murders of several members of a small town.

While JJ attempts to reunite a family whose daughter has mysteriously disappeared, her BAU family braces for the loss of one of their own.

Morgan suggests that a man has been rehabilitated and aids in his parole, but later regrets his decision when the man murders someone days after being released.

After a series of murders, Prentiss becomes suspicious of a former nemesis, and fears for the safety of her team.

As the BAU searches for a suspected human trafficking ring when the bodies of two missing persons are found in the trunk of a car, Unit Chief Aaron Hotchner intimates there could be changes within the team due to budget cuts as Jennifer "JJ" Jareau returns to the FBI. The team is also assisted by SSA Andi Swan, the head of the Domestic Trafficking Task Force.