Kristie Taylor is the third and latest victim of a sexual sadistic serial killer in New Mexico. All the victims have been troubled teen-aged blond females, who have been missing for years and that suddenly turn up dead. They have been asphyxiated with ligature marks consistent with being chained. The other connection that the three have is that they all looked healthier just prior to death than when they went missing, and have all shown signs of just having given birth, killed minutes after delivery. The BAU's initial analysis is that whatever his purpose for the babies is the key to finding the unsub. They suspect that the babies are being sold or being placed in the adoption system, as blond haired, blue eyed babies are those in highest demand. But their profile of the unsub changes when they find one of the babies. They also determine what specifically the unsub is looking for in the babies he keeps. On this case, Hotch is especially hard on Morgan, seemingly having to do with a private meeting between Hotch and Section Chief Strauss.