Antony meets Octavius and Lepidus at his house. They review a list of names, deciding who must be killed. (Act iV scene i)
Brutus explains that he has been under many emotional burdens lately, the foremost of which has been the death of his wife, Portia; he recently received news that she killed herself by swallowing fire. (Act iV scene ii)
Brutus can't sleep because he is feeling guilty. This guilt feeling sudenly turn into a vision were Caesar appears. (Act iV scene ii)
Octavius and Antony enter the battlefield at Philippi with their armies.
Brutus sits with his few remaining men. He asks them to hold his sword so that he may run against it and kill himself. (Act iV scene V)
Octavius says that they should bury Brutus in the most honorable way and orders the body to be taken to his tent. (Act V scene V)