Mary visits Goodwood House, home to the March family and a long line of innovators. The Duchess and her daughter, Nimmy, also reveal the story behind the estate's organic farm. In the butler's pantry, Mary creates a race day breakfast.

Mary Berry is given an exclusive invitation to some of the UK's most lavish country houses. Mary is whisked away from the tourist paths to meet the families who own these exceptional homes and their knowledgeable, dedicated staff. Mary will visit stately homes Highclere Castle in Hampshire, Goodwood House in Sussex, the Powderham Castle in Devon and the Scone Palace in Perthshire, Scotland.