The Man From Headquarters was inspired by The Black Book, an espionage thriller by George Bronson Howard. Cornelius Keefe heads the cast as intrepid U.S. secret service agent Yorke Norray. Our hero is assigned to prevent an enemy government from stealing secret wartime plans. Norray is deflected from his course when he is touched by the basically honorable intentions of foreign agent Countess Jalna (Edith Roberts). Filmed ten years after WWI, The Man From Headquarters takes great pains not to cast aspersions on any foreign government; as a result, there's nary a villain in the picture.