During the German-Russian occupation of Paris in 1814, a Prussian lieutenant, Hugo von L wenklau, comes to the rescue of a young Parisian woman, Margot. Soon after, he becomes entangled with her calculating and opportunistic stepbrother, Captain Albin Richemonte. Richemonte is determined to marry her off to a rich baron, all in an effort to extricate himself from his own mounting gambling debts. In the face of Margot's blossoming romance, the baron and captain aren't about to let L wenklau whisk the young mademoiselle away. Stopping at nothing to rid themselves of the young officer, even murder, they concoct a daring plot which puts L wenklau into contention with the famous French Emperor, Napoleon Bonaparte. Faced on one side with the relentless captain's schemes and a spurned emperor on another, L wenklau finds himself in the fight of his life--to keep Margot out of the clutches of these two villains. Overwhelmed and outnumbered, Hugo struggles to stay ahead of them while maintaining honor and integrity.