As the nomadic Brutus and Cassius struggle to raise foreign money for an army, Mark Antony sets his sights on Gaul. Cicero delivers an in-absentia message to the Senate, and then throws his support to Octavian, the new Caesar. Meanwhile, Vorenus is in a battle of his own, having provoked an all-out gang war in the Aventine Collegium. At Atia's villa, Octavia passes the hours getting intoxicated by hemp with a nouveau riche tradesman's daughter, while Duro (Rafi Gavron), a youth, looks for the chance to set Servilia's deadly plan in motion.

Vorenus is holding court in the Aventine when Memmio and Carbo come to visit him to gain his consent over an issue they have with a local patrician. Carbo’s nephew was defiled by the man, who paid him pennies to perform sexual acts on him without Carbo’s permission. Vorenus notes “the boy was paid?” To which Memmio concedes, however, they feel that detail inconsequential to the matter at hand. Vorenus declares that since the boy was paid, and hence prostituting himself, that there is no offense and the man is not to be touched. Memmio and Carbo are not satisfied, and even Pullo agrees they have a point. This angers Vorenus, who tells Pullo to keep his mouth shut. After a brief argument, Memmio thanks Vorenus for his time and leaves. Vorenus reprimands Pullo for questioning his authority in public.

A short time later, the man Quintus is brought gelded and bleeding into the Collegium. Carbo has disobeyed Vorenus’ order that he not be touched. Vorenus orders Pullo to find Carbo and “disrespect him the way he has disrespected me”, but Pullo refuses. Vorenus sends Mascius instead.

Pullo, fearful that the reprimand will start a gang war, begs Vorenus to reconsider and let him broker a peace. However, Vorenus is unreasonable and becomes enraged, telling Pullo if he is not with him, he is against him. Pullo is insulted by this, and points out that he is just trying to keep Vorenus alive, even though he knows what he is trying to do, that Vorenus would like to see a gang war started, and then he can be killed and put an end to his torment, even if it means taking half the city with him. Vorenus, full of contempt, asks when has Pullo ever saved his life? Pullo lists a number of times he had Vorenus’ back, including mentioning that he “took care of that snake Evander”. Vorenus catches this and asks Pullo what he did. Pullo realizes his mistake but it is too late. He confesses to killing Evander. At this Vorenus realizes that Pullo knew of Niobe’s affair and did not tell him. He tells Pullo to get out.

...
Wikipedia