At Billy and Gwendoline's chateau, Billy and his dad attempt to level a patio so it passes health and safety regulations; easier said than done in an 18th century building. As Paul and Karen struggle to get the office conversion finished in time, a huge damaged pine tree needs to be cut down. And while Clive's dad Martin attempts to fix a wall surrounding the lake, Clive investigates a huge, creepy nest in the roof of the orangery, the building he hopes one day will be a house for his dad.