In the midst of the Civil War, Lassiter has a plan to get control of California. Working out of St. Joseph, he plans to send forged messages to the troops on the west coast via Pony Express. First he attempts to bribe Pony Express ride Roy Rogers. When Roy refuses he turns to the outlaw Johnson and his gang and this leads to trouble.

• Republic Pictures
• Roy Rogers
• Lynne Roberts
• Raymond Hatton
• Edward Keane
• Noble Johnson
• Monte Blue
• Don Dillaway
• William Royle