Eleven-year-old Martin is a basically good boy. Unfortunately each time he decides to give a hand things end in disaster. This summer, he has been invited to spend a vacation at the Hotel Nautilus by his friend Vincent's parents. This is a great place for kids with its cabin hidden among the branches of a tree they call the "baobab". But this year a holiday camp is being built nearby...
| Actor | Role |
|---|---|
 Thierry LhermitteMonsieur Michaud | Monsieur Michaud |
| GGautier KusnierekMartin Raynaud | Martin Raynaud |
 Arielle DombasleVanessa Goudard | Vanessa Goudard |
 Jacques PerrinEtienne | Etienne |
 Martin LamotteGeorges | Georges |
 Gabrielle ForestMadame Michaud | Madame Michaud |
 Patrick GuilleminMonsieur Rossi | Monsieur Rossi |
| GGiulia DemontMylène | Mylène |
| EEugénie GendronCharlotte | Charlotte |
| JJeanne FrigièreMorgane | Morgane |
| TTeddy BeaudoinGreg | Greg |