Synopsis: The Rafael Sabatini swashbuckler Bardelys the Magnificent served as an excellent vehicle for MGM's top male star John Gilbert. Set during the regime of France's King Louis XIII, the story concerns a bold young braggart named Bardelys (Gilbert), whose sexual conquests have become legendary. When informed that there is at least one member of Louis' court who will not succumb to Bardelys' charms, our hero wagers that he will able to melt this "ice princess," a regal beauty named Roxelanne de Lavedas (Eleanor Boardman). But before he can concentrate his efforts on Roxelanne, Bardelys agrees to deliver some important diplomatic documents on behalf of a dying man named Lesperon. When it turns out that Lesperon was a traitor to the throne, Bardelys is sentenced to hang. In the final scenes, our hero desperately tries to escape his fate, while Roxelanne tearfully prepares to marry the only man who can clear Bardelys' name.