Sum up macbeth, act 1 until act 2 :)in 50 words?

Scene 1, MacBeth and Banquo, successful generals, returning from battle, encounter three witches, who privately tell MacBeth he is destined to be King. Scene 2, King Duncan greets returning army, bestows honors on them, and promises to visit MacBeth. Scene 3, MacBeth tells his wife the witches' words, and she spurs his ambitions. Scene 4, Duncan arrives, is greeted warmly by Lady MacBeth. Scene 5, MacBeth and Lady MacBeth plot Duncan's murder.