Marie Antoinette is just a teenager when she is forced to leave Austria to marry the Dauphin of France. She must deliver an heir in order to secure an alliance between the two nations, but she is unprepared for the royal family that awaits her.

When Louis refuses to share his bed with her, Marie Antoinette realizes that producing an heir will not be straightforward. She turns to Madame du Barry for help but a rivalry begins to form between the Favorite and the Dauphine.

The royal family spends some holidays in Fontainebleau. Marie-Antoinette learns about du Barry's plan, who looks for a fiancée for Provence. Will the second pretender to the throne of France be able to birth the Bourbon heir before Louis and Marie-Antoinette perform their duty?

Marie Antoinette and Louis are about to make their first official visit to Paris. But when the King becomes seriously ill, the succession suddenly becomes a reality.