Les Tuche, a modest french family, change his life after winning a super lottery. Thanks to the money of his parents, the son, Donald (aka "coin-coin") goes to Los Angeles to improve his english. On the L.A. University, he meets Jennifer, daughter of a famous American financier.

At the bottom. That's where Yaya and Zakri feel they are living in the projects of Paris. One day, they discover a bag full of money hidden in a parking garage. The two friends finally see an opportunity for them to change things and decide to throw the biggest party their hood has ever known. But their new found luck won't last very long...

One summer night, a group of dropout hoodlums goes looking to make easy money, driving around in search of prey. When they come across four rich kids, things take an unexpected turn for the worse.