"where shall we three meet again , thunder, lightning or rain"
we see the witches foreseeing their meeting with Macbeth on his return from war.
Macbeth and Banquo have defeated two separate army's and come across the witches on the moors. They say that Macbeth will be king one day.
Macbeth you shall be king one day and rule over Scotland. And Banquo's son will rule after or before
Macbeth tell his wife about the witches . When king Duncan comes to dinner at Macbeths castle lady Macbeth convinces her husband to kill Duncan.
DO IT MACBETH SUCSEED IN YOUR DESTINY
the kings dead body was found the next morning. as banquo was told his son would also be king, Macbeth send a group of fighters to kill banquo and his son.
Macbeth revisits the witches who tell him he needs to beware of macduff. Macbeth then orders macduffs castle be seized and his family murdered when macduff flees to England. macduff learns of this and vows revenge.