They rebel against the decisions made by their fathers. On the eve of their planned wedding, Leonce and Lena flee to Italy, where they accidentally meet in an inn and fall in love with each other.
Following their return to the Kingdom of Popo, their identities are revealed, yet Leonce and Lena no longer perceive their marriage as being forced upon them by their parents, but as a result of the intervention of providence.
They ultimately accept their predetermined roles as King and Queen. The production has been staged by such prominent companies as Les Grands Ballets Canadiens in Montreal, the Stuttgart Ballet and Ballett Zürich.