Greg MacDonald and his wife challenge Archie for the role of Laird of Glenbogle. Also the debt from Hector's death duties must now be paid, £250,000. In order to save Glenbogle Molly agrees to marry Kilwillie, but then has a change of heart. They duel and Archie wins. Meanwhile, Irene tells Duncan she is pregnant and he cannot be the father.