The Princess Switch tells the story of Stacy (played by Hudgens), a normal woman from Chicago who participate at a bakwedstrijd in London. The competition is organised by the royal family of the (fictitious) Belgravia. And lets just say the duchess of Montenaro the lookalike of Stacy.
The duchess dreams of freedom, while Stacy it down to a royal life to lead. The two decide to swap lives and learn how it is to be in each other shoes.