A gangster known as "Samurai" wants to turn the waterfront of Rome into a new Las Vegas. All the local mob bosses have agreed to work for this common goal. But peace is not to last long.

Tensions between rival gangs erupt while crime lord Samurai pulls politicians' strings. Three young crooks ally to seize an opportunity.

Samurai sinks his hooks into idealistic Cinaglia. Theodosiou's blackmailers try to silence a witness. Spadino chafes at his looming arranged marriage.

Samurai confronts Spadino over Theodosiou and hands Sara a raw deal. Cinaglia finds himself trapped. Manfredi targets Aureliano for revenge.

With a brewing war between the Anacletis and Adamis jeopardizing his control over the land deal, Samurai forces Gabriele into a terrible choice.

Livia and Aureliano vie for power. Samurai confronts Sara about her ploy. Spadino's secret complicates his wedding night.

Aureliano forces Sara into a deal, but she schemes to turn the tables. Cinaglia plays strong-arm politics. Theodosiou makes a desperate decision.

Samurai closes in as Sara tries to avert a Vatican scandal in return for the commission's votes. Livia reacts to Manfredi's move on her territory.

Scrambling to salvage the deal, Samurai summons Livia and Manfredi to a meeting. Sara faces a deception. Angelica discovers Spadino's secret.

Cinaglia doubles down on his political gamble, and Aureliano suffers a dangerous betrayal. Enthused over making a stand, Spadino takes a big risk.

Samurai drops the hammer, but Aureliano and Livia resist. Spadino takes charge, Cinaglia charts his future, and Gabriele faces a crisis of conscience.

While Cinaglia awaits the results of the political campaign, Samurai reaffirms its control over Aureliano and Lele. Spadino makes a shrewd move to have power.

Livia becomes a pawn and a victim in the battle between Spadino and his mother. Sara meets a new ally in the Vatican and Cinaglia risks big disobeying Samurai.

Aureliano swears revenge. Angelica devises a plan to help Spadino. Christian suspects more and more of Lele. Samurai pushes Sara to transfer the refugees.

Cinaglia confronts the consequences of defection with Samurai. Adelaide tries to control drug trafficking in Ostia. Lele asks Sara for help to conquer the Samurai.

Cinaglia conspires, while Samurai looks for a new alliance and the silence of an old friend. To regain control of Ostia, Aureliano becomes ruthless.

New alliances are born and the old ones disintegrate, while the blood flows and the tensions in the drug trafficking environments push Ostia towards a war.

After the outbreak of violence, Cinaglia reinforces the commitment to his bloodthirsty plan. Aureliano and Spadino reach an agreement and Lele faces the wrath of Samurai.

As the elections approach and Samurai loses power, Aureliano asks Nadia for help. Spadino is blackmailed and Lele makes a fateful choice.

Samurai, Cinaglia and Badali scheme to cash in on the Vatican's Jubilee celebration while Spadino forms a chilling plan to pull Cinaglia's strings.

Ambitious for yet more power, Aureliano and Spadino consolidate control of their alliance and turn their eyes to new turf: north Rome.

Spadino faces a renewed threat to his power. Cinaglia tries to back Cardinal Nascari into a corner. Nadia and Angelica learn the ropes in north Rome.

In the aftermath of the shooting, Aureliano and Spadino scramble to salvage their alliance. Cardinal Nascari tries to break Cinaglia's grip on him.

Discovering the truth, Spadino sets himself on a collision course with Manfredi. Alice comes to a fraught decision about Cinaglia.

Violence escalates out of control and lives are destroyed as the walls close in around Aureliano, Spadino and those they love.