Long divorced Josephine Morgan has summoned her two adult offspring, Los Angeles GP Lindsay Morgan and San Francisco tax attorney Brad Morgan, along with Brad's wife Sarah Morgan, to Scotland, Jo's native land, for the Christmas holidays, most specifically to Glencrave Castle. Close as children, Lindsay and Brad have become estranged in their busy lives leading to no meaningful time available for the other and some misunderstandings in the belief of the other no longer caring. But they have both respected their mother's wishes in the request to spend this Christmas together seemingly being important to her for some reason. Shortly after their arrival, Lindsay and Brad discover the reason for being summoned specifically to Glencrave is Jo needing to divulge her secret heritage, all in a measure of family healing. At age twenty, Jo left Scotland for love to join who is Lindsay and Brad's American father and his folk band in California, this new freedom in her life in order to get away from her predetermined, regimented life as Lady Josephine and the future Duchess of Glencrave. With the last Duke of Glencrave, Jo's brother Daniel, having recently passed, the castle and the titles now have been deeded back to Jo for her to decide what to do. Having no interest in reassuming her birthright as the Duchess of Glencrave or the upkeep of the castle, she is leaving the decisions to Lindsay and Brad, who also have the birthright as the Duchess and Duke of Glencrave if they so choose. The opposing extreme option is to sell the property and forgo anything to do with Glencrave, including the titles. Getting over their initial anger at their mother for denying them knowledge of this heritage for their entire lives including knowing now deceased family, Lindsay and Brad come to understand the monumental decisions ahead of them which not only affect them but the people who depend on Glencrave. Beyond the strain in their relationship, Lindsay and Brad have their own issues, Brad and Sarah who are going through a rough patch in their marriage over issues of contention at this point in their lives, and Lindsay balancing her feelings for her work as a doctor to her patients against her burgeoning feelings for Glencrave's groundskeeper, Mac Bell.
—Huggo