Ballet 422 is a record of the creative process of a young choreographer Justin Peck, just 26 years old, hired to create a new ballet for the winter season of the New York City Ballet in 2013. The New York City Ballet is considered one of the best companies in the world. Since 1990 it has been directed by Peter Martins, its chief ballet teacher. The documentary describes the intense work behind the scenes that takes place during the creation and learning process of this new ballet: "Paz de la Jolla". It shows Peck working with his fellow dancers (Justin Peck is also a soloist at NYCB!), with musicians, lighting technicians and costume designers on the composition of a new work, his third creation for NYCB. It is the first time that the New York City Ballet has been exhibited during the creation of a new ballet.