Things turn deadly when elite matchmaker Margo Clarke goes to extreme lengths to keep her socialite client from finding out the truth about her perfect new husband; when the husband goes missing, Capt. Wagner assigns Elsbeth and Kaya to investigate.
The BAU is called to investigate after the bodies of missing people are discovered in a remote region of the Idaho wilderness.
Danny contemplates retiring until Erin enlists him to help her with a case involving her ex-husband.
The brother of death-row inmate Lincoln Burrows intentionally gets himself incarcerated, then plans to use his skills as a structural engineer to free him.
Retaliation Hit. Serveride is met with unexpected news, as Voight returns.