A spirited young woman moves to a sleepy seaside town, and it's not what she expected.

The season picks up nine months after the events of season one, as Charlotte returns to the beautiful seaside resort and soon attracts the attention of not one, but two new men. And, in her last summer season before turning 21, Georgiana Lambe, keen to forge her own identity, gets up to mischief in the name of love — but will she run the risk of being lonelier than ever before? The Parkers are back, as Tom strives to rebuild Sanditon. But there are many unforeseen issues awaiting him, while the secrets and lies of the dysfunctional Denhams continue to rock the foundations of the sunny seaside town.

Charlotte returns to Sanditon and is forced to confront her feelings for Colbourne. Georgiana, meanwhile, must fight in court to keep her inheritance while Edward tries to convince them that he is a changed man despite Augusta Markham's fortune that is making his head spin. Between marriages, plots and betrayals, will the inhabitants of Sanditon find peace, happiness and love?