Story : Coverage of the World motorbike speed championship in 1974: the "fantastic ride" of the best racers in Europe and the twelve Grand Prix composing the “Continental Circus”.

Pierre-William Glenn started as a director of photography for New Wave directors (François Truffaut, Jacques Rivette), some Americans (Samuel Fuller and Joseph Losey) and more peculiar authors (Maurice Pialat), and is still famous for being the first to use Fuji film. Motorcycle enthusiast, he directs there a first cult movie, that couldn't be found for decades.