August, 1943: In his short time as a spy with the Office of Strategic Services, young Cletus Frade has faced many unlikely situations, but nothing like his new assignment. Having helped Lieutenant Colonel Wilhelm Frogger escape a Mississippi P.O.W. camp, he must now get the defiant German to turn against his country.

In the aftermath of the surrenders of Germany and Japan in October 1945, Cletus Frade and his colleagues in the OSS are given the life-threatening task of maintaining security during a covert U.S. deal with Germany for intelligence about the identities of Soviet spies in the American atomic bomb program.