When Hugo, a boy who spends his summer vacation with his cousins, discovers that the wolf Rong intends to take his grandmother Sara, he devises a plan to save her.
| Actor | Role |
|---|---|
 Carmen MauraGrandma Sara | Grandma Sara |
 Pierre RochefortArno | Arno |
 Bruno SalomoneLéon / Rong the Wolf | Léon / Rong the Wolf |
 Franc BruneauSaul | Saul |
 Baptiste SorninOrlando | Orlando |
 Tatiana GousseffTina | Tina |
 Véronica NovakTatika | Tatika |
 Wim WillaertBulliard | Bulliard |
| EEnzo IngignoliHugo | Hugo |
 Charline Balu-EmaneAïsha | Aïsha |
| FFilip JunescuKolja | Kolja |
| RRose de Gouvello GrachLibby | Libby |
 Ambre HasajLily | Lily |
| MMarion BrunnerThe Baker | The Baker |
| MManon BalthazardLéa | Léa |
| CCélia AsensioYoung Grandma Sara (voice) | Young Grandma Sara (voice) |
 Antoine SchoumskyGrandpa Félix (voice) | Grandpa Félix (voice) |