Cicero realizes that young Octavian has tricked him and he openly sides with Brutus and Cassius who are amassing an army in Greece, inviting them to return to Rome. It presents a very real problem for Octavian whose four Legions are vastly outnumbered. His mother Atia has a solution however: make peace with Mark Antony and unite their forces to attack their enemy in Greece. They do make their peace with one another but also agree there is a need to eliminate their enemies before setting off for battle. Even Atia seizes the opportunity. Octavian specifically tasks Vorenus and Pullo to eliminate Cicero, which is done when they take their families on picnic in the countryside. When the the two armies finally meet at Philippi, Octavian and Antony have a resounding victory. On the Avantine meanwhile, Vorena makes the acquaintance of an attractive man.
—garykmcd