1983, Paris region. While Daniel, a young DJ passionate about funk, returns from San Francisco, where he discovered hip-hop culture, two teenagers spend more or less quiet days in a city of Saint-Denis: the discreet Bruno, with a football talent, and the gambler Didier, raised by a violent father. Fascinated by an American dance show on the forecourt of the Trocadéro, Bruno and Didier get closer. Daniel, on the other hand, makes his debut as a DJ in a pirate radio station, determined to introduce the French public to the music of tomorrow...