Approaching his 18th birthday, David drops out of school and runs away from home and from a conflicting relationship with his mother Elena. The only thing that matters for him is break dancing. With his own group, the Urban Cyber Breakers, he has got a dream : To win the dance battle that will bring his team to the world final in New York Before reaching USA and fame, he has to overcome the rival group, the LD, to deal with his mother's excessive love and to live out his passion for the beautiful Samia. Le Défi is a musical comedy, inspired by the great American tradition and set in today's world of France's Hip Hop movement. This very strong cultural identity, different from the US model allows Blanca Li to give an original point of view on today's melting pot of French urban youngsters.