CIA agent Jeff Larson is sent to investigate suspicious activities at a U.S. base located in southern Spain. He discovers the base is being heavily monitored by the KGB via hidden cameras and moles within the base, and he must find a way to ferret the traitors out whilst avoiding discovery of his investigation.

• Transatlantic Production
• Hans Oppenheimer Film
• Ray Danton
• Pascale Petit
• Conrado San Martín
• Roger Hanin
• Manuel Gil
• Horst Frank
• Charles Regnier
• Wolfgang Preiss