304: Children Of The Dark
The BAU investigate a series of brutal home invasions that leave a trail of bodies throughout Denver. The serial killers are two brothers. When the BAU discovers that one of the killers has formed an attachment to a survivor of one of their home invasions – they use the survivor as bait to trap the killers.
Twenty years ago, a killer terrorized rural Virginia but was never caught. Now, new victims have begun turning up. The signature is the same but the victims have changed. The BAU realizes that they have to crack the old case in order to solve the current one and discovers that they have found a second generation of serial killer.
The BAU is dispatched to New York, where they have to determine if the shootings of victims at point blank range are the work of a single killer or a team of killers. People who seemingly have nothing in common are shot at random The BAU discovers is deadlier to them than they anticipated.