A significant event is coming to the "Prinzee" boarding school - the Grand Ball, which is held only once every four years. All students are involved in preparations for the celebration: they learn dances, choose outfits, make jewelry... The three inseparable friends: Carlotta, Manu and Sophie, were no exception. They were already buzzing each other's ears about what to wear, who to waltz with and how NOT to fall on your face in the dirt at the ball. Paint thickens with the appearance of the new Julien, who, according to rumors, turns out to be a relative of the Queen of England herself!