10-year-old Sebastien reluctantly spends his vacation in the mountains with his grandmother and aunt. Helping them with the sheep is hardly an exciting prospect for a city boy like him - but that is without considering his encounter with Belle, a huge dog mistreated by her owner. Ready to do anything to fight injustice and to protect his new-found friend, Sebastien will spend the craziest summer of his life.
| Directing | Pierre Coré | Director |
| Writing | Cécile Aubry | Characters |
| Writing | Alexandre Coffre | Screenplay |
| Writing | Pierre Coré | Screenplay |
| Production | Sidonie Dumas | Producer |
| Production | Clément Miserez | Producer |
| Production | Matthieu Warter | Producer |
| Production | David Giordano | Executive Producer |
| Sound | David Menke | Music |
| Camera | Gilles Porte | Director of Photography |
| Production | Pierre-François Créancier | Casting |
| Production | Valérie Pangrazzi | Casting Director |
| Art | Philippe Chiffre | Production Design |
| Costume & Make-Up | Marie-Laure Lasson | Costume Design |
| Costume & Make-Up | Lucine Azanza | Hairstylist |
| Costume & Make-Up | José-Luis Casas | Key Hair Stylist |
| Costume & Make-Up | Elena Salvagiani | Makeup Artist |
| Costume & Make-Up | Agnès Tassel | Key Makeup Artist |
| Production | Astrid Calix | Production Assistant |
| Production | Gabrielle de Cevins | Assistant Production Manager |
| Production | Alexandre Houllier | Unit Production Manager |
| Production | Olivier Jolibert | Assistant Unit Manager |
| Production | Jean-Philippe Moreteau | Assistant Unit Manager |
| Production | Lucien Scoubart | First Assistant Accountant |
| Directing | Mathis Pangrazzi | Additional Second Assistant Director |
| Directing | Lauriane Sire | Additional Second Assistant Director |
| Directing | Zuzana Tomcalova | Second Assistant Director |
| Directing | Nicolas Tonnerre | Third Assistant Director |
| Directing | Brieuc Vanderswalm | First Assistant Director |
| Art | Loïc Fontimpe | Storyboard Artist |
| Art | Delphine Houdas | Construction Coordinator |
| Art | Arnaud Lucas | First Assistant Art Direction |
| Crew | Thomas Pasquet | Carpenter |
| Art | Nicolas Raffy | Property Master |
| Sound | Anael Barnaud | Boom Operator |
| Sound | Adrien Donzelot | Boom Operator |
| Sound | Germain Boulay | Sound Editor |
| Sound | Laura Chelfi | Assistant Sound Editor |
| Sound | Antoine Deflandre | Sound Mixer |
| Sound | Jules Laurin | Dialogue Editor |
| Sound | Charles Michaud | Sound Engineer |
| Sound | Johann Nallet | Foley Mixer |
| Sound | Tom Nicolas | ADR Supervisor |
| Sound | Serge Rouquairol | Supervising Sound Editor |
| Sound | Clara Zilliox | Sound Assistant |
| Visual Effects | Benoît Armstrong | Visual Effects Producer |
| Visual Effects | Thomas Duval | Visual Effects Supervisor |
| Visual Effects | Nicolas Lacroix | Visual Effects Producer |
| Visual Effects | Kevin Pacini | Visual Effects Producer |
| Visual Effects | Stéphane Soubiran | Visual Effects |
| Crew | Gilles Conseil | Stunt Coordinator |
| Crew | Kevin Conseil | Stunts |
| Crew | Alice Naigeon | Stunt Double |
| Camera | Olivier Ayrignac | Grip |
| Lighting | Grégory Bar | Gaffer |
| Camera | Steve de Rocco | Second Unit Director of Photography |
| Camera | Steve de Rocco | Camera Operator |
| Lighting | Adrien Dodin | Electrician |
| Camera | Camille Durand | Video Report |
| Crew | Jorge Escribens | Drone Operator |
| Lighting | Willy Gauzin | Electrician |
| Camera | Raphaëlle Imperatori | Second Assistant Camera |
| Camera | Eric Jalageas | Grip |
| Camera | Mathieu Lamand | First Assistant Camera |
| Camera | Julien Marc | Key Grip |
| Lighting | Eva Mathis | Electrician |
| Camera | Richard Mercier | Steadicam Operator |
| Lighting | Étienne Mordier | Electrician |
| Camera | Alban Paqueville | Second Assistant Camera |
| Camera | Jérôme Prébois | Still Photographer |
| Lighting | Lucas Schwartz | Electrician |
| Camera | Arthur Schwarz | First Assistant Camera |
| Camera | Gaspard Soboul | Video Report |
| Production | Anna Mezencev | Casting Assistant |
| Costume & Make-Up | Bettina Tran Dinh | Assistant Costume Designer |
| Editing | Mathilde Delacroix | Colorist |
| Editing | Hugo Planchais | Dailies Operator |
| Production | Kevin Boubli | Assistant Location Manager |
| Art | Philippe Pangrazzi | Location Scout |
| Directing | Juliette Baumard | Script Supervisor |
| Sound | Joachim Tschann | Musician |
| Sound | Reinmar Neuner | Musician |
| Sound | Christiane Menke | Musician |
| Sound | Lionel Limiñana | Musician |
| Sound | Stefan Kasper | Musician |
| Sound | Martin Caraux | Music Supervisor |
