From first rehearsal to world premiere, BALLET 42 takes us backstage at New York City Ballet. Dance Justin Peck, a young up-and-coming choreographer, is commissioned to create a new ballet for the Company's 2013 Winter Season. With unprecedented access to an elite world, the film follows Peck a he collaborates with musicians, lighting design- ers, costume designers and fellow dancers to cre- ate Paz de la Jolla, NYCB's 422nd new ballet.