A science-fiction film centered around planet Earth receiving a coded message from outer space and the subsequent disappearance of 12,000 inhabitants of Sepuvedra, a free-trade port. The government and the army are convinced that they have been kidnapped by aliens and Professor Larsen, an eminent astrophysicist and UFO expert, is assigned to lead an urgent investigative mission into the deserted town.
| Directing | Jean-Michel Roux | Director |
| Art | François Fries | Production Design |
| Crew | Eric Altmayer | Production Office Assistant |
| Camera | Michel Amathieu | Director of Photography |
| Lighting | André Chamberland | Directing Lighting Artist |
| Writing | Alexis Galmot | Writer |
| Writing | Régine Abadia | Writer |
| Writing | Jean-Michel Roux | Writer |
| Writing | Robert Gray | Dialogue |
| Production | Nardo Castillo | Executive Producer |
| Production | Jean-Martial Lefranc | Executive Producer |
| Production | Claude Léger | Producer |
| Production | François Fries | Producer |
| Production | Eric Altmayer | Associate Producer |
| Production | Brigitte Germain | Producer |
| Sound | Treponem Pal | Original Music Composer |
| Sound | Mick Morris | Original Music Composer |
| Sound | Mick Harris | Original Music Composer |
| Editing | Jean Beaudoin | Editor |
| Editing | Julie Dupré | Assistant Editor |
| Production | Emmanuelle Beaugrand-Champagne | Casting |
| Editing | Thomas Metzger | Colorist |
| Art | André Chamberland | Art Direction |
| Costume & Make-Up | Marga Binoux | Costume Design |
| Costume & Make-Up | Marie-Angèle Protat | Key Makeup Artist |
| Costume & Make-Up | Erik Gosselin | Special Effects Makeup Artist |
| Costume & Make-Up | Christophe Chabenet | Special Effects Makeup Artist |
| Costume & Make-Up | Melina Di Cristo | Assistant Makeup Artist |
| Costume & Make-Up | Serge Morache | Additional Hairstylist |
| Costume & Make-Up | Johanne Paiement | Key Hair Stylist |
| Production | Diane Arcand | Production Manager |
| Crew | Julian Ferrera | Post Production Supervisor |
| Crew | Georges Jardon | Post Production Supervisor |
| Production | Noël Morrow | Production Manager |
| Directing | Sylvie Perron | Second Assistant Director |
| Directing | Louis-Philippe Rochon | Assistant Director |
| Art | Carl Lessard | Graphic Designer |
| Art | Peter Stratford | Draughtsman |
| Sound | Pierre Choukroun | Sound |
| Sound | Anja Lüdcke | Assistant Sound Editor |
| Sound | Bruno Tarrière | Sound Mixer |
| Sound | Pascal Chauvin | Foley Artist |
| Crew | Pascal Molina | Special Effects |
| Visual Effects | Delphine Domer | Visual Effects Coordinator |
| Visual Effects | Jean-Paul Rovela | Visual Effects Coordinator |
| Crew | Antoine Simkine | Executive Visual Effects Producer |
| Visual Effects | Nicolas Rey | VFX Artist |
| Visual Effects | Cédric Houplain | VFX Artist |
| Visual Effects | Seb Caudron | VFX Artist |
| Visual Effects | Alain Boutillier | VFX Artist |
| Costume & Make-Up | Mariane Carter | Wardrobe Master |
| Production | Francis Choquette | Production Assistant |