Streetwise Jamie looks to lead a gang and cut old ties for a new supplier. In Jamaica, hardened criminal Dushane is at the mercy of a powerful kingpin.

Dushane returns to London. Jamie juggles family duties with risky responsibilities. Before his prison release, convict Sully is provoked by an inmate.

Strapped for cash, Dushane makes a proposition to an old friend and attempts burglary. Beefing with a rival gang, Jamie struggles to keep a low profile.

The feud between the Fields and the A-Roads escalates. A fiery attack puts Sully and Jason in peril. Dushane's plans take an unexpected turn.

As the money rolls in for Dushane and Sully's crew, a threat gets wind of their booming business -- and neither party is ready to give up their turf.

As the Zero Tolerance gang asserts their power, Dushane's crew attempts to hire young recruits. When Sully becomes a target, the group prepares for war.

Ats makes his first delivery. Jamie's punishment for a detractor goes awry. After a warning from Haze, Dushane looks to eliminate the competition.

A familiar face breaks free from jail and confronts Jamie about his self-appointed leadership. Lizzie is forced to change her business strategy.

Bent on taking out Sugar and Jamie, Dushane and Sully orchestrate hits on their rivals -- until a surprise shootout shakes up their plans.

When an enemy's takedown puts Jamie back in a position of power, Dushane and Sully use their slick tactics to outsmart him.

With big plans to go legit, Dushane plots new business moves and extends an offer to Jamie. The future of Summerhouse puts furious residents on edge.

Amma receives devastating news. Sully meets a kind stranger. Jaq and the crew handle a matter in-house while Dushane takes an important meeting in Spain.

After a botched drug shipment, Dushane sends Jamie to Morocco to find a potential leak. Jaq gets revenge on an attacker. The cops move in on Ruben.

The Summerhouse redevelopment puts Dushane at odds with his mother as police work to take Dushane down. In Morocco, another drug delivery is intercepted.

After a disturbing video circulates on social media, Dushane races to find Sully. Jamie heads to Spain to broker a deal as Lauren searches for a way out.

Jaq tracks down the woman in Ats' video. Dushane attends Ruben's bail hearing. An unexpected visitor arrives in Spain, muddling Jamie's plans.

Shelley confronts her past. Jamie meets with Kit. Bent on getting Lauren back, Curtis resorts to devious tactics as more issues overwhelm Dushane.

Jaq arranges a meeting with Curtis. The cops hit a bump in their investigation. Jamie's loyalty is put to the test. Dushane has a change of heart.

Dushane agrees to back Shelley's new business venture. Sully receives a shipment containing a terrible surprise.

Jaq spends time with her sister, Lauryn. Sully tries to take care of a new threat, but Dushane won't trust him to do it alone.

Dushane tries to track down his investments. Sully plots a move against his new partners. Shelley's dreams are dashed.

Stefan and Erin take a step forward in their relationship. Shelley calls it quits with Dushane. Jaq starts to doubt everything.

After a daring move, Jaq goes on the run. Sully looks for answers. Dushane learns that investigators are pursuing him closely.

With Summerhouse up in flames, Jaq tries to make things right. Dushane makes preparations to disappear, and Sully is confronted by a ghost from his past.