The Bau investigates a killer, "LC," targeting a trauma surgeon by murdering surrogates for his son, while also dealing with the shocking discovery that Hotch has been brutally attacked and abducted by the Reaper (George Foyet) after their season-ending confrontation, with Prentiss finding him barely alive in his apartment before he's hospitalized. Reid is also shot, in the leg, by the unsub, “LC.”