What do ross and macduff decide to do at the end of scene 4?

In Act 5, Scene 4 of Shakespeare's play "Macbeth," Ross and Macduff decide to join forces with Malcolm and the English army to overthrow Macbeth and restore order to Scotland. They are determined to rid the country of Macbeth's tyrannical rule and bring about a new era of peace and prosperity under Malcolm's leadership.