General Jarjayes, deprived of the son he desperately wanted, names his newborn daughter Oscar and raises her as a boy. Now an adult she vies for the position of Commander of the Royal Guards for Princess Marie Antoinette.
New to the French court, Marie is still learning proper etiquette regarding nobility. But things become bad when Marie unwittingly snubs the King's mistress, Madame du Barry, and makes a dangerous enemy.
Louis's self-indulgence drives Marie to go to a masquerade ball where she meets Count Hans Axel von Fersen. Unfortunately, her interest in him inspires Duke Orleans to spread rumors about Marie's morality.
Marie has a severe accident while horseback riding and Andre is consequently issued the King's harshest punishment. Luckily Oscar persuades the King to spare Andre, but will his pleas make a difference?