Final answer:
Malcolm gets help from the English forces and Macduff to fight against Macbeth and reclaim the throne of Scotland.
Step-by-step explanation:
Malcolm, the son of King Duncan, seeks help from the English forces to fight against Macbeth. Fearing for their lives and the future of Scotland, Malcolm and Donalbain flee to England after their father's murder. While in England, Malcolm joins forces with the English army and Macduff, a Scottish nobleman who also opposes Macbeth. Together, they strategize to invade Scotland and overthrow Macbeth, who has seized the throne through treachery and murder.