There's a new criminal element in town and they state their arrival by knocking off a few of Vincent's men. Recker and the team get drawn into the middle of it and start investigating to learn the identity of the mystery player. Recker and Haley get a tip about a high-level meeting of the new crew in an abandoned building, but all is not what it seems. Instead of a meeting, they run into Malloy, who's also there to investigate, and an otherwise empty building. It turns out to be an ambush, and only two of the three will escape uninjured.

Will they find out who's responsible for the attack and bring them to their brand of justice? Or will the perpetrators slip out from under their fingers to cause more chaos and destruction?