It follows events decades later when the emerging nouveau riche, including the Trenchard family, rub shoulders with London's established upper classes, and when secrets from the past threaten to emerge.
Cast: Alice Eve, Philip Glenister, Tamsin Greig, Ella Purnell, Jack Shalloo, Harriet Walter, Tom Wilkinson, Adam James, Nigel Allen, Stevee Davies, Penny Layden, Ian Attard, Cornelius Booth, Rebecca Callard, Ty Hurley, Jeremy Neumark Jones, Emily Reid
Tensions rise when Caroline organises an outing for Lady Maria and Anne, which sees the women compromised. Susan's indulgent behaviour catches up with her, and Ellis begins to show her true colours.
The depths of Stephen's problems are revealed, causing John to set his manipulative sights on Charles and Caroline as a way to make money; Susan isn't shy about exploiting the Trenchard's new social circle.
Anne tells Caroline a secret which puts the women in opposition; a surprise guest at a lavish party hosted by Caroline forces James to reveal a truth that threatens to tear the Trenchards apart.
The Trenchard family have recently ascended to the aristocratic society of London’s Belgravia, but a decades old love affair comes back to haunt them and jeopardise the happiness of many.