With tension building in the streets of Harlem thanks to ruthless club owner Cottonmouth, Luke finds it increasingly difficult to live a quiet life.

Luke is pulled deeper into the fight for his neighborhood when, as a favor to an old friend, he tries to help a kid who's in trouble with Cottonmouth.

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.

Cottonmouth strikes back at Luke by taking his vengeance out on the people of Harlem, while detectives Knight and Scarfe face an unexpected threat.

After Cottonmouth and Scarfe's bloody clash, Luke realizes that saving the community may turn former allies into enemies, and enemies into allies.

Mariah's political career comes under fire, and Cottonmouth picks up information that could put Luke on the run.