What could be more exciting than getting your Baccalaureate? Lou, Malik, Fiona, Solal, Paul and Théo are finally free! Free to do what they want and ready to do anything to have the best time of their lives. Together, they close the school door behind them, to go on an adventure. It is by train and across Europe that the six friends will discover what it means to become an adult, through encounters and adventures that they are not ready to forget...