Julien, Lea and Felix are barely 20. Like their comrades, their lives will radically change in a few months.
They are learning a profession but also values and rules. They also realize that they will never be citizens like anyone else. Their lives and their careers will be dedicated to serve others. Sometimes they will be honored, sometimes hated. They are to become cops. But above all, they will never forget the year that changed them forever when they joined the police academy of Roubaix, section 13.