Julie Montagu and her husband officially take over his family estate, and the responsibilities of its 400 year legacy. Marissa is pregnant, but the birth is far from a joyous event due to a life threatening condition. Caroline Fleming struggles to balance home life as she has to travel to Denmark weekly to spend time with her sick father. Sophie, Caroline's sister-in-law, finds herself caught in the middle of a feud between Julie and Caroline Stanbury.

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, but with nearly 400 years of British history behind it, she doubts herself as an American. Marissa welcomes her new baby. On a trip to Denmark with Juliet, Caroline Fleming makes the ultimate red carpet slip up.

Caroline Fleming seeks help from her therapist. Marissa must cancel her party when baby Sadie gets sick. Julie looks forward to hosting all the ladies at the family estate, but with tensions mounting between Caroline Stanbury, Sophie and Adela things come to a head when the house rules are laid down.

Julie is put to the test 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. Caroline Fleming and Juliet gossip about Marissa's choice to leave her baby behind in London for a party.

Julie deals with more life changes as her daughter picks dresses for Leaver's Ball and prepares to leave for University. Sophie continues to question her feuding relationship with Caroline Stanbury. Caroline Fleming deals with the legacy and burden of her family estate. Marissa throws a cocktail party, but when Adela and Caroline Stanbury confront each other the party ends in tears.

It's the Queen's birthday and the ladies celebrate! Marissa and Sophie head out to have a ball at ping pong, but end up rediscovering their wild sides. Juliet asks Caroline Stanbury and Caroline Fleming to join her for a trendy pub crawl, but their happy hour is ruined when bickering ensues. Marissa and Juliet confront each other about gossiping while Sophie and Caroline Stanbury decide to finally have it out.

In an effort to reconnect with her friends, Caroline Stanbury takes all the ladies on a trip. Staying in a castle Caroline Felming feels right at home, but the no rules itinerary puts Julie on the defense. Sophie continues to pledge her loyalty to her family over friends. Marissa is confronted over starting the rumors about Caroline Stanbury's legal issues and Adela opens up about her troubled past.

The whiskey is flowing and the haggis is hot as Caroline Stanbury's getaway with the ladies continues. After being confronted over her negativity, Juliet makes an effort to reign in her temper when it becomes apparent Marissa is struggling with her health. Caroline Fleming organizes an innocent game with balloons that quickly becomes X-Rated. Sophie witnesses an end to the feud between Julie and Caroline Stanbury, but may have triggered a new one herself.

The ladies head to a high society rowing event, but the fun takes a dive when Adela confronts Juliet. Julie takes Sophie to task over her loyalty to family before friends. Caroline Fleming decides to revive an old family tradition. Marissa consults a doctor regarding her health, while Caroline Stanbury keeps a stiff upper lip when her mother deals with her father's health crisis.

Adela, Caroline Stanbury and Sophie share a slumber party in commemoration of Caroline's last week in London. Julie gets emotional preparing her daughter for the final school dance while Juliet revisits her past when her mother arrives. Caroline Fleming throws a Mid Summer's Eve themed party in honor of her mom, but when a secret is exposed the celebration becomes a nightmare.

Marissa makes a decision about the future of her family while Julie must face the fear of letting her daughter go. Caroline Fleming gets news about her first English language cookbook and Sophie comes to the decision to tell her kids about her separation. Juliet celebrates a milestone in her blogs success, and the ladies gather at a goodbye party for Caroline Stanbury.