Tracy Turnblad, a big girl with big hair and an even bigger heart, has only one passion - dancing. Her dream is to appear on "The Corny Collins Show," Baltimore's hippest dance party on TV. Tracy (Nikki Blonsky) seems a natural fit for the show except for one not-so-little problem - she doesn't fit in. Her plus-sized figure has always set her apart from the cool crowd, which she is reminded of by her loving but overly protective plus-sized mother, Edna (John Travolta). That doesn't stop Tracy because if there is one thing that this girl knows, it's that she was born to dance. As her father Wilbur (Christopher Walken) tells her, "Go for it! You've got to think big to be big."