At the Château de Lalacelle, Terry and Ashley are up against a brick wall as they start to bring their garden back to life in an attempt to create a setting for their own wedding. In western France, Sarah and George put a chef through his paces as they hunt for the perfect wedding caterer, while at the Château de Bourneau, Erin and JB welcome a different type of guest, as they build an insect hotel to increase biodiversity. Narrated by Adjoa Andoh