1) Julius Caesar returns to Rome as a celebrated general but faces conspiracy from those jealous of his power and popularity.
2) Cassius convinces the respected Brutus to join the conspiracy to murder Caesar, appealing to Brutus' idealism and sense of protecting Rome's democracy.
3) On the Ides of March, Brutus and the other conspirators stab Caesar at a meeting of the Senate, believing they are acting to prevent Caesar from becoming dictator.