After spending three months doing experiments in space, scientists Antón and Daniel return to civilization. They're astounded to discover that the Earth has undergone an enormous cataclysm and the law of the gravity has even been altered in the interim.

• Producciones Cinematográficas Minguest
• Eduardo Fajardo
• Daniel Martín
• Inka María
• Julián Ugarte
• Víctor Israel
• Jaime Ros
• Antonio Lara
• Esteban Dalmases