Prussian general's son Friedrich, Freiherr (German baron) von der Trenck, is an unruly student whose countless affairs make him enemies, but he wins every duel. Frederic II the Great recruits him for his personal bodyguard. During his cadet training under the cruel stickler Graf (count) von Jaschinsky Friedrich falls in love with the king's headstrong oldest sister Amalia. She, however, refuses to be married off the the Swedish king's heir. When Prussia makes war on Austria over Silesia, Trenck's loyalty is dubious on account of an Austrian family branch. Janischky eagerly convinces the king there is more.
as Friedrich Freiherr von der Trenck
as Prinzessin Amelie
as Graf von Jaschinsky
as König Friedrich II
as Nicolaï Wenzel
as Hofdame Marie
as Heinrich von Quiztow
as von Rochow
as Musiklehrer Kirnberger
as Generaladjutant von Borg
as General von Habich
as Universitätsdekan
as Baron von Kollwitz
