Roy plays an undercover insurance investigator who hopes to ascertain the whereabouts of a vein of gold ore–and to solve the murder of the vein’s owner.
John Blair, a greenhorn cowboy who along with his partner Larry Adams, is swindled into buying a delapidated stagecoach line to the nowhere town of Crescent City.
Macklin and his gang are causing problems in Colorado, Lieutenant Jerry Burke (Roy Rogers) is sent to track them down but only to find his brother commands them.