At Château La Grande Maison, Ben and Billie dream of transforming their tired orangerie into a serene health spa, while Chris and Jolyon tackle the final two of their eight bedrooms, taking on intricate wallpaper, a handmade bunk bed and a secret bookcase door.

Donna and Paul plan to install a rear balcony at their chateau in Brittany, but it's a demanding job that requires Paul to handle heavy steel girders and cut through decades-old reinforced concrete. Renovations are also under way at Châteaux de la Vergne and de la Grillère, while a wedding party are trapped by dangerous trees near Cognac.