Macbeth returns to the witches. They tell him that he should beware of Macduff, that he will not be killed until Birnam woods moves to Dunsinane castle and he can not be killed by a man born of a woman.
Lady Macbeth jumps to her death and Malcom and Macduff's army attack the castle, cutting down branches and hiding behind them to camouflage themselves.
Macbeth feels better especially after ordering the death of Macduff's wife and children(Macduff has gone to England), but his wife Lady Macbeth appears to be loosing her mind.
"Out damned spot"
"I look'd toward Birnam, and Anon, methough, the wood began to move"
Macduff finds Macbeth. Macbeth thinks he cannot be killed as Macduff must have been born from a woman. However, Macduff says he was "ripped" from his mother's womb not born, and kills Macbeth. Malcolm becomes king.