After exchanging insults with Antony and Octavius, Brutus and Cassius say their final farewells in case they die in battle.
Alas, thou has misconstrued everything.
Brutus tells Messala to inform Cassius to attack Antony's flank because he believes it is vulnerable.
Caesar, now be still. I killed not thee with half so good a will.
After sending Titinius to see if some soldiers are his men or not, Cassius sends Pindarus up the hill to tell him what is happening. Pindarus thinks the enemy has captured Titinius, but it is really Cassius' army.
This was the noblest Roman of them all.
After Cassius thinks Titinius is captured, he asks Pindarus to kill him and he also sets him free. Pindarus stabs Cassius and runs away, but Titinius arrives and discovers Cassius to be dead. He then takes The sword out of Cassius' body and kills himself with it.
After defeating Octavius' army and seeing Cassius and Titinius dead, Brutus orders his army to battle the army of Antony. Defeated, Brutus asks many people to help him kill himself, and finally Strato does. Brutus runs upon his sword while Strato holds it, because he does not want to be taken prisoner into Rome.
Antony and Octavius find Brutus dead, and they say that he was the noblest Roman of them all. They say that unlike the other conspirators, Brutus only wanted what was best for Rome. Octavius orders for the fighting to stop, and says that Brutus will have a full military honor funeral.