Ailing King Leopold sends his daughter Princess Alexia of Osia to a exclusive American girls' boarding school as a commoner, so that she can know the meaning of true freedom. When she meets young millionaire Bob Carewe, they fall in love, but Alexia is summoned home because of a conspiracy of the king's advisers threatening to replace him with the Duchess Sylvia. When Bob reads of Osia's financial difficulties, he goes to help with a loan, though he realizes she cannot marry him if she is ever to rule. When the king dies suddenly, it causes a rebellion among the people. Although Bob bravely fights against the conspirators and nobly helps a bleeding rival for Alexia's affections, the duchess is proclaimed queen. She orders Alexia's arrest, but Bob, using one of the conspirators as a shield, escapes with Alexia to the border, now they are happily free to marry.