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.

Mariah campaigns to turn the city and the police against Luke, and not even Misty or Claire may be able to save him.

Misty digs deeper for the truth as the neighborhood's power players throw the city into confusion.

With all of Harlem bearing witness, Luke takes on the fight of his life in hopes of emerging as the defender his city needs.

As Luke adjusts to his growing fame and tries to shut down the flow of heroin branded with his name, someone from his past reaches out.

Luke tests out his abilities on the ballfield, Misty ruffles feathers at the precinct, and Mariah plans a reunion to boost her image.

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

As footage of his fight with Bushmaster goes viral, Luke struggles with the aftereffects and follows a trail of clues to Tilda's shop.