A section boss for the railroad sets out to catch a gang of thieves who have been stealing ore shipments from his company's trains.
| Actor | Role |
|---|---|
 Helen HolmesHelen Martin | Helen Martin |
 Edward HearnJack Hathaway | Jack Hathaway |
 Wilfrid NorthPepper Martin | Pepper Martin |
 Lloyd WhitlockBarker - the Claims Agent | Barker - the Claims Agent |
| DDick RushThe Manager of the Great Western Smelter | The Manager of the Great Western Smelter |
 Dan Crimmins'Slippery' McGee | 'Slippery' McGee |
| NNorma WillsSlippery's Wife | Slippery's Wife |
 J.P. McGowanBarker's Accomplice at Smelter Junction | Barker's Accomplice at Smelter Junction |
| RRex the DogRex | Rex |