Today's Mystery:An FBI undercover man infilitrates a Nazi spy ring that could send the secret of Process 97 to the Nazis.

Original Radio Broadcast Date: May 3, 1952

Originated from Hollywood

Starred: Humphrey Bogart as Inspector George Briggs, Keefe Brasselle, Betty Lou Gerson, Lou Merrill, Herb Vigran, Shepard Menken, Paul Dubov, Bob Sweeney, Frank Nelson, Walter Wolf King

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