Annabelle Neilson is back on the scene after a horrible accident last season while Julie Montagu struggles with being a working mom now that her husband is busy running their family’s Mapperton estate. Marissa Hermer sets out to throw a lavish Thanksgiving dinner for her society friends, but as the holiday approaches, Juliet Angus and Caroline Stanbury forge an alliance that could spell the end of Juliet’s friendship with Marissa.
Juliet and Annabelle are shocked when Julie extends an olive branch to Caroline Stanbury, despite their fall out from New Year’s Eve. Meanwhile, Julie seeks funding for her healthy snack food start-up, and Caroline Stanbury must ask her own investors to keep the Gift Library alive. Marissa seeks Annabelle’s stylish advice in anticipation of her new restaurant’s launch.
After being on the outs with the ladies for weeks, Juliet attempts to turn a new leaf when she invites everyone out for a night of bowling -- but whether she can convince them she’s changed remains to be seen. Caroline Stanbury faces the unsettling reality of having to scale down her staff in order to appease investors and keep her business afloat. Julie takes Annabelle and Caroline Fleming to her uncle’s Beaulieu estate to generate ideas for saving Mapperton.
Marissa must work to salvage her friendship with Caroline Fleming after insulting her for dating a younger man. Julie once again fulfills her reputation as "Loose Lips" Montagu when she hosts a shooting weekend for the girls. Caroline Stanbury struggles to remain emotionally stable while her Gift Library continues its downward spiral.
Marissa and Juliet come back together to watch Annabelle take to the catwalk with Naomi Campbell. Caroline Stanbury reaches a tipping point with Gift Library. Caroline Fleming invites the ladies to her homeland of Demark where they are shocked by her celebrity. Though they are far from home, the mounting tension between the ladies cannot be contained, as Annabelle voices her opinions - loudly.
It's the Queen's birthday in London and the ladies celebrate around the town! On the West Side Marissa and Sophie head out to have a ball at ping pong, but end up rediscovering their wild sides. Meanwhile, Juliet asks Caroline Stanbury and Caroline Fleming to join her on the East End 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 before her big move to Dubai, Caroline Stanbury takes all the ladies on trip to Scotland. Staying in a 15th-century castle Caroline Felming feels right at home, but the "no rules" itinerary puts Julie on the defense. Meanwhile, 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 castle getaway with the ladies in Scotland continues. After being confronted over her negativity, Juliet makes an effort to reign in her fiery temper when it becomes apparent Marissa is struggling with her health post-birth. In an attempt to have fun, Caroline Fleming organizes an innocent game with balloons that quickly becomes X-Rated. Sophie witnesses an end to the long standing feud between Julie and Caroline Stanbury, but may have triggered a new one herself.
The ladies head to a high society rowing event, The Henley Royal Regatta, but the fun takes a dive when Adela confronts Juliet over her constant negativity. Meanwhile, Julie takes Sophie to task over her loyalty to family before friends. In an attempt to connect with her past, 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.