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.
| Directing | Élie Semoun | Director |
| Crew | Godi | Creator |
| Writing | Godi | Comic Book |
| Crew | Benoît Drousie | Creator |
| Writing | Benoît Drousie | Comic Book |
| Writing | Marc de Chauveron | Writer |
| Writing | Guy Laurent | Writer |
| Writing | Élie Semoun | Writer |
| Production | Romain Rojtman | Producer |
| Production | Adrian Politowski | Executive Producer |
| Production | Benjamin Hess | Executive Producer |
| Production | Marie-France Michel | Casting |
| Production | Sebastiàn Moradiellos | Casting |
| Sound | Alexandre Azaria | Original Music Composer |
| Camera | Christian Abomnes | Director of Photography |
| Editing | Sandro Lavezzi | Editor |
| Art | Ilse Willocx | Set Decoration |
| Costume & Make-Up | Frédérique Leroy | Costume Design |
| Costume & Make-Up | Rachel Beeckmans | Makeup Artist |
| Costume & Make-Up | Virginie Berland | Wigmaker |
| Costume & Make-Up | Saori Matsui | Makeup Artist |
| Costume & Make-Up | Coraline Perin | Makeup Artist |
| Costume & Make-Up | Robert Smedt | Hairstylist |
| Costume & Make-Up | Jennifer Courouge | Hairstylist |
| Sound | Pascal Jasmes | Sound Mixer |
| Sound | Raphaël Seydoux | Sound Re-Recording Mixer |