When Cassius arrives, he begins to confront Brutus about the way Brutus has treated him. They go into the tent and argue until a poet urges tehm to get along. News of the death of Portia comes to the tent, and the men decide to meet the enemy army at Philippi. After Brutus is left alone, Caesar's ghost appears to him and promises to see him at Philippi. On the plains of Philippi, the two armies meet and the generals argue over who is at fault for this battle.
Nothing is resolved and the men return to their armis to prepare for battle.
Brutus and Cassius vow to win or not be taken alive. Cassius, making a mistake, kills himslef, and Brutus mourns his death. Brutus realizes that the battle is lost and runs upon his own sword, and Antony gives him a moving eulogy. The play ends with an omen for future peace when Octavius agr ees to pardon all Brutus's men and take them into his service. Let's go Home . . .