When American businessman Conrad Tucker reads a magazine story about the aristocratic Aird clan, he wonders if young Laura could be his daughter from a years-ago affair with Virginia Aird. His obsession with finding out threatens the family, even as Laura finds love.

Laura struggles to recover from the tragic loss of her lover with the help of her neighbor Hamish. Virginia worries her secret will tear her family apart. Alexa deals with the regular infidelities of her husband, Noel, suspecting this time he's cheating with someone closer to home.

The death of the Aird matriarch reveals a secret love child, one who could possibly take down the family business. As Edmund tries to navigate this news, Noel works to turn it to his advantage.

Balnaird is at risk of being lost forever, and only one person can save it. As a scheming Noel plays a trump card, the Aird clan works to find happiness again. Alexa makes a major decision regarding her future.