In this unapologetically all-princess movie, Barbie packs her bags and heads off to a famous School to learn about how to become a Princess! Barbie stars as Blair, a very modern girl who lives in a contemporary fairy tale setting. She receives an invitation to attend Princess Charm School for formal princess training. She makes friends with Rock Star Princess and Soccer Star Princess Blair but still feels out of place since she doesn't come from a royal family like the other students. Blair and her new friends soon become convinced that she is the rightful heir to Gardania's throne as unusual things start to happen around the castle and Tess, one of the mean girls, looks set to rule the kingdom after graduation! Luckily the ‘Sprites’, Magical Princess Assistants, reveal a previous queen that looks a lot like Blair. Good will triumph…and after 15 years, Blair is revealed as the rightful heir to the throne of Buckinghurst Castle!