It's 1861 and Buck gets the business men of Sacramento to establish the Pony express. Hawley runs the stage line over the same route and has the U. S. mail contract. When it looks like the Pony Express will be awarded the mail contract, he gives guns to the Indians and has them attack both the riders and the stations.
| Actor | Role |
|---|---|
 Buck JonesBuck Dawson | Buck Dawson |
 Marjorie ReynoldsJean Greeley | Jean Greeley |
 Carlyle Moore Jr.Tom Furness (as Carlyle Moore) | Tom Furness (as Carlyle Moore) |
| MMaston WilliamsBill Hawley (as Matson Williams) | Bill Hawley (as Matson Williams) |
| WWilliam ArnoldHenry Furness | Henry Furness |
 Lew KellyFred Greeley | Fred Greeley |
 Bud OsborneOverland Wilson | Overland Wilson |
 Ben TaggartPostal Agent Adams | Postal Agent Adams |
| SSilverSilver (uncredited) | Silver (uncredited) |