Oil—black gold—the blood of Mother Earth! America had squandered its precious reserves and a syndicate of skilled saboteurs was destroying the remaining store! With all National defense rendered helpless for want of it, bitter despair gripped the hearts of the country’s millions. Pillage, slaughter, and slavery—misery and death—threatened each American! And Jimmy Christopher, Operator 5 of the United States Intelligence, was gambling his life recklessly in a valiant effort to save his native land from extinction!
Henry Steeger, the owner of pulp publisher Popular Publications, launched the monthly pulp magazine "Operator #5," about a hero who would "single-handedly, or almost, save the nation from complete destruction regularly every month," in 1934. The novels were published under the pseudonym Curtis Steele, and were written by Frederick C. Davis until November 1935, then by Emile C. Tepperman until March 1938, and then Wayne Rogers for the remainder of the run.
A foreign group is shutting down the U.S.'s oil supply. An alternative source is needed or the group stopped. Meanwhile its armament is focused on destroying the Panama Canal.