A new wave of art activism puts Vargas in the hot seat; Stabler is brought into a new unit.

As the "Collective" ramps up its body count, Stabler finds himself torn between family and the case.

Emery and Joe are back; playing both sides catches up with Joe, sending him to a fatal endgame.

Stabler goes rogue to find Emery and faces the truth behind revenge with one last assist from Joe.