[Act I, Scene iii]. Casca, excited by the fiery portents that bode disaster to the state, is persuaded by Cassius to join "an enterprise of honourable-dangerous consequence" (lines 123-124). The conspirators are assigned to their various posts, and Cassius engages to secure Brutus before morning.
[Act II, Scene i]. The humane character of Brutus, as master, husband, and citizen, is elaborated, and his attitude to Cæsar and the conspiracy of assassination clearly shown. He joins the conspirators—apparently their leader, in reality their tool. In lines 162-183 he pleads that the life of Antony be spared, and thus unconsciously prepares for his own ruin.
[Act II, Scene ii]. Cæsar is uneasy at the omens and portents, and gives heed to Calpurnia's entreaties to remain at home, but he yields to the importunity of Decius and starts for the Capitol, thus advancing the plans of the conspirators. The dramatic contrast between Cæsar and Brutus is strengthened by that between Calpurnia in this scene and Portia in the preceding.
[Act II, Scene iii]. The dramatic interest is intensified by the warning of Artemidorus and the suggestion of a way of escape for the protagonist.
[Act II, Scene iv]. The interest is further intensified by the way in which readers and spectators are made to share the anxiety of Portia.
III. The Climax, Crisis, or Turning Point (the Knot Tied)
[Act III, Scene i, 1-122]. The dramatic movement is now rapid, and the tension, indicated by the short whispered sentences of all the speakers except Cæsar, is only increased by his imperial utterances, which show utter unconsciousness of the impending doom. In the assassination all the complicating forces—the self-confidence of Cæsar, the unworldly patriotism of Brutus, the political chicanery of Cassius, the unscrupulousness of Casca, and the fickleness of the mob—bring about an event which changes the lives of all the characters concerned and threatens the stability of the Roman nation. The death of Cæsar is the climax of the physical action of the play; it is at the same time the emotional crisis from which Brutus comes with altered destiny.
IV. The Resolution, Falling Action, or Consequence (the Untying of the Knot)
[Act III, Scene i, 123-298]. With Brutus's "Soft! who comes here? A friend of Antony's" begins the resolution, or falling action, of the play. "The fortune of the conspirators, hitherto in the ascendant, now declines, while 'Cæsar's spirit' surely and steadily prevails against them."—Verity. Against the advice of Cassius, Brutus gives Antony permission to deliver a public funeral oration. Antony in a soliloquy shows his determination to avenge Cæsar, and the first scene of the falling action closes with the announcement that Octavius is within seven leagues of Rome.