In the aftermath of a chaotic event at a favorite Harlem hangout, Luke heeds the call to action -- and hits Cottonmouth where he'll feel it most.

Worried Luke is headed down a dark path, Claire pays a visit to his father. Bushmaster makes a bid for Mariah's guns.

Hunkered down in a makeshift safe house, Luke and Misty butt heads over how to handle Mariah. Meanwhile, long-buried family secrets come to light.