The Overland Stage Raiders

The Three Mesquiteers (John Wayne, Ray Corrigan and Max Terhune) buy an airplane to fly the gold out that has been under constant attack when traveling by motor coach. However, the coach line's corrupt owner threatens the daughter of the Mesquiteers' aircraft partner, if he will not rob the air shipment. The film is notable for being the final film in which silent film icon Louise Brooks performed.