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.

As he rescues a victim of Cottonmouth's vengeance, Luke remembers his earlier life and the conspiracy that led to his superhuman strength.

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.

With Luke wounded and on the run, Misty faces a soul-searching interrogation. Mariah's rise to power takes a dark turn.

Luke gets closer to the truth about Reva and her part in his fate, while Mariah wrestles with the morality of her new role. Misty hunts for Luke.