A young heiress of an American gun factory is threatened by a masked man after her father was murdered. This criminal might be a member of her family or a German agent, who wants to get information about the factory's products, perhaps his mystery has a combined solution - we will probably never know...
| Writing | Bertram Millhauser | Scenario Writer |
| Directing | George B. Seitz | Director |
| Writing | Arthur B. Reeve | Story |
| Writing | Charles Logue | Story |
| Directing | William P. Burt | Assistant Director |
| Camera | Harry Hardy | Director of Photography |
| Directing | Arthur C. Miller | Director |
