PRINCE LIAM. PRINCE FREDERIC. PRINCE DUNCAN. PRINCE GUSTAV.You've never heard of them, have you? These are the princes who saved Sleeping Beauty, Cinderella, Snow White and Rapunzel, but you probably know them all as 'Prince Charming'. Well, all that is about to change as the hapless princes stumble upon an evil plot and get a second chance to prove themselves true heroes.