While Ludovic Dubois, a young summer camp monitor in Saint-Benoît, entertains the children by playing Robin Hood, the lord's niece is kidnapped by her uncle, in the castle next door. Helped by the children and the customs inspector, the last of the Robin Hoods will free the "Princess Isabelle", and will end up marrying her.
| Actor | Role |
|---|---|
 Roger NicolasLudovic Dubois | Ludovic Dubois |
 Nicole MaureyIsabelle Delorme | Isabelle Delorme |
 Henri VilbertCustoms inspector | Customs inspector |
| LLucien NatAntoine Levêque | Antoine Levêque |
 Charles BouillaudJulien | Julien |
 Luc AndrieuxAccomplice | Accomplice |
 Raoul MarcoThe Principal | The Principal |
 Albert MichelGendarme | Gendarme |
 Michel DumurKid | Kid |
| JJacques GencelKid | Kid |
| SSerge LecointeKid | Kid |
| YYves DerangèreKid | Kid |
 Jack Ary(uncredited) | (uncredited) |
| DDominique Brun(uncredited) | (uncredited) |
| MMaurice DorléacCaptain (uncredited) | Captain (uncredited) |
 Paul FaivreGustave (uncredited) | Gustave (uncredited) |
| FFrançois RichardAccomplice (uncredited) | Accomplice (uncredited) |