A group of young American heiresses are changed forever when they're whisked across the Atlantic to London.

Conchita hosts a raucous country house party. Jinny and Lizzy go head-to-head for the same man. Nan reveals a secret.

Things unravel during a weekend at Guy's family home, as Nan finds herself feeling torn. Mabel and Honoria get closer.

The gang head to Scotland for a Christmas getaway. Lizzy makes a confession. James' behavior escalates. Nan faces a hard choice.