The actors show a re-enactment of Pullo and Vorenus' fight with gladiators, while the star of the show is recovering, unaware of his fame. Once he finds out about his newfound renown, he's flattered and decides to return to Rome. Vorenus and his family are inspecting their plot of land, making plans for the future. Once the returns, Lyde tells them that Pullo has come to their house. Pullo tells him of their fame, but Vorenus is still cautious about the consequences of their actions.
During the night, Eirene comes to Pullo's bed and attempts to slit his throat, but Niobe interrupts her. In the morning, the mistress orders her to feed Pullo, and she does it without any animosity.
Caesar is making grand plans about the expansion of the Senate with Antony and Cicero, the latter is astonished by the inclusion of Gauls and Celts among the senators. Vorenus comes to the meeting, where Caesar chides him for taking law into his own hands, but doesn't punish him further due to his fame, instead making him a senator and keeping him around to teach him the basics. Cicero is incensed due to Vorenus' low birth, but his objections are overruled. Antony and Posca are wary as well, but the dictator calms them down. At home, Vorenus decides to find his daughter a wealthy husband.
Calpurnia sees a dream where a flock of birds is flying frantically, but Caesar dismisses it. Meanwhile, Servilia performs a ritual over Brutus that will ensure that he will strike Caesar down.
Pullo recovers enough to start walking and tries to use his notoriety to charm women, bringing him one of them much to Eirene's jealousy. Vorenus is officially indicted as a senator, along with barbarians, and Cassius and other conspirators are dissatisfied. Cicero determines Vorenus to be the biggest threat to them, but they're not allowed to kill him, so they need a plan. Brutus proposes that he should be the one to kill Caesar in the Senate. Servilia remembers hearing about Vorenus from Octavia and asks Atia and her children to come to her house. Octavian is wary of this sudden invitation, but decides to accompany his mother. Servilia reveals the details of the plan and promises to make Atia's life hell
It's the Ides of March, and Pullo decides to go to a temple and ask the gods for forgiveness, with Eirene coming with him. Meanwhile, Vorenus is accompanying Caesar and follows him like a shadow. A beggar woman, who works for Servilia, approaches him and tells him about the real parentage of his grandson Lucius. The news shock him, and he realizes that Niobe has conceived the boy with Evander. He leaves Caesar's side and rushes to his house.
Caesar comes to the Senate where the conspirators attack him, violently stabbing and slashing him with knives, while Antony and Posca are being kept from interfering outside the building. Brutus hesitates to lift his hand and drops the weapon, watching the murder happen. Finally, Caesar slumps down, at the death's door, and Cassius puts the knife back into his friend's hand, urging him to finish the tyrant off. The dictator gives him one last stare full of sorrow, and Brutus drives the blade into his body, killing him. After it's over, the young patrician is shaken, and Antony comes to the Senate, looking at the grisly scene before quickly leaving.
Vorenus confronts his wife and starts smashing things in fury, refusing to believe the truth, and Niobe reveals everything. Having lost his honor, the senator thinks about ending it all, but the woman makes the choice for him and jumps from the balcony to her death. Vorenus embraces her body and sees the boy approaching, with conflicting emotions running through his mind.
At the shrine, Pullo and Eirene become engaged to each other and walk away, back to Rome.
- Death Glare: Servilia and Octavian give one to each other after the plan is revealed.
- Death of a Thousand Cuts: Caesar is greviously wounded by the senators who repeatedly stab him with their knives.
- Downer Ending: Caesar is dead, and Brutus doesn't feel any satisfaction from it, realizing just what a mistake he's done. Niobe leaps to her death, leaving her children orphaned and her husband a widower. The only real good event in the end is Pullo and Eirene finally getting some happiness in their relationship.
- Driven to Suicide: Niobe leaps to her death after her husband learns his honor has been stained.
- Et Tu, Brute?: Averted. Caesar gives Brutus a silent stare before being finally killed.
- Prophetic Dream: Calpurnia sees dreams that hint at her husband's death.
- Rags to Riches: Vorenus says that in his daugther's age he was eating bones from a gutter, but now he's a respectable senator.
