To celebrate their forthcoming 40th wedding anniversary, Marlene has arranged for her and Boycie to renew their marriage vows. But, whilst checking up on old friends and acquaintances for the guest list, she hears some devastating news - news that puts an entirely different complexion on the Boyces' relationship.
Bored with life on the farm, Marlene throws herself into charity work. As a by-product of her efforts, Boycie senses an opportunity to become Sir Aubrey. Marlene, with the help of their staff, tries to use her charity contacts to help her husband achieve his dream. Unfortunately, life is very rarely that simple, particularly where Boycie and Marlene are concerned.
While searching through some ancient scrolls and paperwork left behind by the old squire, Boycie discovers a medieval recipe for a traditional local liquor. With the help of his staff, he goes into full-scale production, attracting customers from far and wide, including two whom he had hoped he had seen the last of.