Oil & cattle country saloon singer Cleo Borden (West) inherits Buck Gonzales' (Fred Kohler) ranch and its oil riches when he's killed rustling cattle (why?). She takes charge of the property and uses crude methods to woo the chief oil engineer, formal Englishman Edward Carrington (Paul Cavanagh). When Carrington leaves for Buenos Aires, Cleo follows to race Cactus, her pureblood racehorse, and causes a stir when she cleans up in wagers. Cavanagh is intrigued, but Cleo thinks he hates her, so she marries into a good name by making a deal with a dissolute gambler still in the social register. Back in the states, Cleo puts on an opera of Samson and Delilah and sings the Delilah part. Cavanagh, having been given a English title, wants her after all, but a hateful sister-in-law (Marjorie Gateson) hires a slimy Russian gigolo (Ivan Lebedeff) to put Cleo in a compromising situation.