Prince Herod has shipped in a secret consignment of gold for the Triumvirate, and Octavian instructs Lucius Vorenus to oversee its safe passage discreetly into Rome. Vorenus delegates the task to Titus Pullo, who is known and trusted by both Octavian and Mark Antony, much to the ire of Vorenus' third man, Mascius. However, Gaia poisons Eirene's tea, causing Eirene to die in childbirth with a stillborn baby boy. Pullo is incapacitated with grief so Mascius takes over the operation. An ambush results in the theft of the gold and the near death of Mascius. As accusations fly, Maecenas is convinced that Antony and Posca are the culprits. He had earlier plotted with Posca to steal a portion of the gold for themselves, but now believes that he has been double-crossed. He exacts his revenge by revealing to Octavian that sexual relations still exist between Antony and Atia, and Octavia the Younger and Marcus Vipsanius Agrippa.

Octavian, who has just given a grand public speech on the virtue of Roman women, is outraged and confronts his family. First, he calmly introduces his new wife, Livia Drusilla, who is divorcing her current husband Tiberius Nero to marry him. He then wrathfully reveals that he knows of the lack of virtue of the women of his own house. He threatens to make Antony the laughing stock of Rome by revealing his wife's shameful infidelity with Agrippa to the plebs if he does not leave for Alexandria at once. He also barricades Atia and Octavia inside the house. He forgives Agrippa, who later breaks off relations with Octavia to stay loyal to Octavian. Octavia, who wanted to run away with him, angrily calls him a coward and reveals that she is pregnant, but is unsure and uncaring of the identity of the father.

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Wikipedia