Where Trails Divide (1937)

Tom Allen (Tom Keene), a young lawyer for an express company, is sent to Rawhide, undercover, to investigate and find the gang that has been robbing the stagecoach gold shipments. His younger brother Billy (Davis Sharpe) is the local agent for the company, and has run up some gambling debts if the crooked card games at "Mississippi" Wilson's (Warner Richmond) saloon, and has been forced to give shipping information to Wilson's gang. Tom is appointed sheriff and begins to put pressure on Wilson and his gang. He maneuvers them into a position where they are forced to feel across the desert from a band of irate citizens. They soon run out of water and two of Wilson's many henchmen die from drinking from a poisoned well, and Wilson kills another one over the remaining water in a canteen that Wilson had kept hidden from his henchmen. Tom and his two sidekicks, 'Happy' Days (Hal Price) and Ike Jones (Richard Cramer), witness the murder and take Wilson back to town to be hung.