Season 4: The New Reign
10 episodes · 2026
A new wave of British blue bloods, ambitious American expats and glamorous international socialites light up London’s elite social scene. As tradition collides with the fast-paced globalized world, these power players redefine what it means to belong to high society in one of the most iconic cities in the world.
1The New Reign
London's summer season kicks off at a glamourous garden party hosted by Mark-Francis, where rumours begin to swirl.
2I Know What You Said This Summer
Lottie and Joshua celebrate her pregnancy with a photoshoot as Myka juggles the challenges of solo parenting.
3Whining in the Rain
Martha digs through long-forgotten boxes from her past, unearthing memories; Myka sits down with Dara; Missè organizes a day of wine tasting and bonding.
4Naked Truths
Lottie and Joshua shop for the perfect push present; as a health scare rattles her, Emma turns to Mark-Francis for comfort and reassurance; Kimi hosts a glamorous art party, but the celebration takes a sharp turn when she's confronted about her behavior.
5Martha in the Middle
Myka embarks on a new business built on kindness; Lottie and Joshua host a gender reveal for their families; Margo and Emma throw competing dinner parties where Mark-Francis spreads a rumor about Margo, leaving Martha caught between her two best friends.
6Not So Fair Ladies
Emma receives a surprising health update. Lottie grows concerned that Joshua's work life is taking a toll. Martha hosts a "My Fair Lady"-themed picnic, but the afternoon turns out anything but proper when Margo confronts Mark-Francis for spreading rumores behind her back.
7Horsing Around
Margo brings a dose of American holiday spirit to London. Martha takes meaningful strides toward reclaiming control of her life. Myka celebrates her birthday with a lavish, polo-inspired bash in true British fashion. Misse attempts to mend the growing rift between Mark-Francis and Margo.
8Bad Manors
The ladies trade the bustle of London for a lavish retreat at the magnificent Longleat House, anticipating a weekend of elegance, adventure and indulgence; The calm of the countryside soon begins to fray, however, as long-simmering tensions between Margo and Mark-Francis resurface, threatening to turn their refined escape into an uncomfortable clash.
9Whey Out of Line
Tensions at Longleat continue as Margo’s sharp words strike a nerve with Mark-Francis, sending ripples of friction through the group. As the others enjoy a day out in Cheddar, Margo suffers an emotional breakdown.
10The Summer Showdownfinale
As summer in London draws to a close, Myka steps into the spotlight, hosting her very first UK etiquette event. Mark-Francis and Margo come together in hopes of making peace. The group attends Joshua Kane's Summer Showcase, where Martha finally finds her voice, much to Margo's dismay.