Professor Barlow develops a new I.F.F. device for the United States that is the object of the espionage mission of a Nazi exile group.
Locked away in the heavily guarded files of U.S. Military Intelligence are the incredible case histories of foreign enemies who plot to devastate America - dominate the world!
Here's one such story - that of a powerful underground Nari organization which strove for a come back!
But anonymous, unsung heroes of the American Counter Espionage Service stood grimly in the way - in the strange tale entitled: Operation: Peril!
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