In a remote, mountainous section of Russian-occupied Germany, there is an elaborate post-war Nazi underground dedicated to the achievement of Hitler's dreams of world supremacy. A group of scientists are working on a method of releasing atom bombs through remote control. The FBI learns of the plot and sends an operative in to foil it.
| Actor | Role |
|---|---|
 William GarganAgent Larry Cameron | Agent Larry Cameron |
 Patrick O'MooreAgent George Timothy | Agent George Timothy |
 Maria PalmerGreta Holvig | Greta Holvig |
 Herman BingHerr Schmidt | Herr Schmidt |
| KKay ConnorsKay | Kay |
 Eilene JanssenAnchaka Schmidt | Anchaka Schmidt |
 Kurt KatchDr. Heligmann | Dr. Heligmann |
 John BleiferBecker | Becker |
 Henry RowlandOtto Manfred | Otto Manfred |
| GGeorge SorelDr. Zarig | Dr. Zarig |