Arizona Round-Up plot
"Tom gets the most dangerous assignment any undercover man has ever had!"
Tom Kenyon and his faithful friend Pierre La Farge are hired by rancher Mike O'Day. Mike runs a ranch with his two daughters Toni and Sugar where wild horses are tamed for the federal government. Ed Spencer, the manager of the railroad through town, and Ted Greenway, rancher and owner of the only right of way to this station, team up. Greenway charges the other ranchers exorbitant prices for the passage to get their horses and livestock shipped. At a ranchers meeting, Tom reveals that he is actually a federal government agent and has come to resolve this situation.