A aristocratic lieutenant is forced to resign his commission and give up his career in the cavalry after having defended himself against deliberate provocations by a superior officer who is competing with him for the love of the daughter of a respected privy councillor. His family bans him to New York, where he falls on hard times until a former circus performer helps him to become a world-renowned trapeze and aerial artiste.
Vanina loves rebel leader Octavio, who gets caught. He gets a pardon and marries Vanina. When he is captured again, Vanina helps him to escape prison. They are both caught, and after his execution she dies from grief.
Her Sport is a 1919 German silent comedy film directed by Rudolf Biebrach and starring Henny Porten, Georg H. Schnell and Hermann Thimig. A man-hating young woman tries to break up her friend's new marriage, but while in the Alps she meets her own ideal man.