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.

At the exclusive Tintagel ball, Nan considers the prospect of becoming a duchess. Conchita struggles with her mother-in-law's approval.

Nan must figure out her path forward. Jinny feels trapped. Mrs. St. George reckons with the state of her family.