The hunt for a methodical killer takes the BAU to Arizona to search for an increasingly devolving unsub, and the team speculates that Hotch is in the running to be the new BAU Section Chief following the death of Erin Strauss.

As the BAU zeroes in on the suspect of the ritualistic killings they've been investigating in Arizona, a bizarre connection within the unsub's family could lead them to finally nab the suspect.