Johan and Isabella want to open up the castle and arrange a party for ordinary people. But Johan is not satisfied when the charming prime minister unexpectedly appears.

King Johan wants to win the hearts of the people through chocolate, while Isabella tries to become a more modern queen. The relationship between Ellinor and Katja takes a new turn.

It is May 17 at the castle and Isabella's sister shows up unexpectedly. The sister's visit and the court's attempt to rule Isabella sets off a rebellion in her. Johan receives bad news that ruins his favorite day of the year.