In the aftermath of Sophie's divorce party, it's Stanbury vs. Stanbury when Caroline and Sophie battle it out over family loyalties. Julie tries to makes big changes at the family estate, Mapperton, but with nearly 400 years of British history behind it, she doubts herself as an American. Marissa welcomes her new baby after facing her near death experience in surgery. Meanwhile on a trip to Denmark with Juliet, Caroline Fleming makes the ultimate red carpet slip up landing her in red hot water with her family.

Julie is put to the test as Lady of the Manor when her first dinner party explodes into an argument resulting in Caroline Stanbury storming out. A day fishing on the water does nothing to wash away the tensions as Caroline Stanbury's relationship with Sophie continues to fracture over loyalty. Meanwhile Caroline Fleming and Juliet gossip about Marissa's choice to leave her baby behind in London for a party in the Hampton's.