When American-born Wesley Parker inherits a dukedom in 1890, he must learn to be an aristocrat. Assigned to the task is his attorney's daughter, prim Belle Oakhurst. As they travel to England together on a luxurious ocean liner, their tempestuous relationship encounters more than rough seas. Although Wesley is increasingly attracted to Belle, she is already engaged. While Belle begins to regret her hasty promise to marry, she is bound by honor and duty to keep her pledge. Furthermore, a thoughtless fabrication on her part threatens to expose her as a liar. Neither Wesley nor Belle can foresee that their voyage across the Atlantic will be fraught with peril, and will cost more than one man his life.