Thirteen-year-old Lizzie McGuire and her pals Gordo, Kate and Ethan all pack their bags and plan to live la dolce vita while on a class trip to Italy. Once there, Lizzie is mistaken for pop star Isabella and begins to falls for Paolo, Isabella's handsome, Italian pop star former boyfriend. When Lizzie's mom, dad and annoying brother Matt get wind of this, they all jet their way to the boot country. In the meantime, Lizzie is transformed from a gawky teen to a beautiful pop star, Gordo struggles to understand his true feelings for her, and a whirlwind of surprising events force Lizzie to find the true meaning of friendship.