A run-of-the-mill but decent enough Western silent short. Frank Lawler (Lon Chaney) is a definite bad guy. As the clerk for a mining company he knows when the gold shipments go out and tells a gang of bandits so they can steal it. Frank is also after the mine owner's daughter Dora (Agnes Vernon)...
The mine boss (Seymour Hastings) is however suspicious there is an inside man and hires detective John Murdock (Murdock MacQuarrie) to infiltrate the gang and find out. Of course Murdock saves the day, and the girl.
The plot is fairly simple but works fine in a film that's just about ten minutes long, let's face it some much longer films have even more simple plots.