
The blueprints of an aeroplane built from an ultra-secret metal are stolen from national security. French secret service agent Walder believes that the documents are now in Switzerland, in the hands of a man named Lindbaum. The latter agrees to hand over the blueprints in return for a large sum of money. Another agent, Francis Coplan, is sent to Switzerland to handle the deal, but Lindbaum only has half of the documents because he was double-crossed by Kalpannen, an international crook. With the help of Heidi, a Swiss correspondent, Coplan sets out to identify the members of Kalpannen’s gang, only to find that they have all been murdered…

as Francis Coplan

as Hiedi Effen

as Walder

as Diana Rossi

as Bérès

as Sylvia

as Kalpannen

as Lindbaum

as Colonel

as Dr. Serutti

as Fondane

as Karl

as Gregory

as Engineer

as Friedi Fulger, photographer


as Herst