I guess I do not have a reason to turn against him...
Once Caesar is back from his battle with a Roman leader, the citizens celebrate his victory. While most people are very happy with him, there are a few who dislike him and fear that he will become a dictator.
Some of those who have turned against Caesar pull Brutus, one of Caesar's friends, into a conspiracy against him.
Friends, Romans, countrymen, lend me your ears!
After debating on whether or not he can trust Caesar, Brutus joins the conspiracy due to his fear of what could happen if Caesar became the king. He says that it is not because he loves Caesar less, but he loves Rome more.
What an honorable man Brutus was.
Caesar is lured to the capital and the conspirators kill him.
When Antony speaks, he is supposed to support the conspirators, but instead he goes against them. This causes a riot and forces the conspirators to flee the city.
Antony, Octavius, and Lepidus fight the conspirators as revenge for Caesar's death. Eventually, all the conspirators commit suicide, and Antony gives Brutus a hero's burial.