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