In the office of Major Northfield, the quartermaster of the Pacific Coast, a leak has been discovered which may endanger the safety of American transports that are secretly carrying troops across the Pacific. Nara-Nara, a Japanese detective, is assigned to the case because his country has guaranteed safety to these transport ships. Nara-Nara believes that Northfield is guilty, although in reality it is Northfield's secretary Kitty Little, a girl of German ancestry, who is passing information to Dr. Ebell Smith, a German agent. Nara-Nara falls in love with Kitty, but soon after discovers that she is the leak in the quartermaster's office.
Unfortunately the movie The Secret Game is not yet available on HBO Max.
| Directing | William C. de Mille | Director |
| Writing | Marion Fairfax | Screenplay |
| Production | Jesse L. Lasky | Producer |
| Art | Wilfred Buckland | Art Direction |
| Directing | Harry Haskins | Assistant Director |
| Camera | Charles Rosher | Director of Photography |
