Back to school for Ducobu, Léonie Gratin and Latouche. But this year, a major rival for Ducobu arrives at school: TGV, the king of cheating 3.0. While the financial situation of Saint-Potache becomes disastrous, the two dunces will have to unite their creativity to win a song contest and save their school.
Fred Bartel is the charismatic boss of a trendy Parisian communication agency, Happy Few. After a heated tax audit, he was forced by the administration to relocate overnight his company in La Courneuve. Fred and his team meet Samy, a young suburb who will quickly propose to teach them the rules and practices to adopt in this new environment.
