An American agent discovers that the Red Chinese have built a secret atomic city from which they will attempt to invade America.

• Films Internacionales (FISA)
• Splendor Films
• John Ericson
• Bernardina Sarrocco
• Manolita Barroso
• Carlo Hintermann
• Beni Deus
• José Manuel Martín
• Erika Blanc
• Dario Michaelis