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.
Élie Semoun
Gustave Latouche / Ghislaine Latouche
Émilie Caen
Ghislaine Rateau
Frédérique Bel
Adeline Gratin
Loïc Legendre
Hervé Ducobu
Mathys Gros
Ducobu
Leeloo Eyme
Léonie Gratin
Chad Ebengue
T.G.V.
Léopold Moati
Willie
