A group of Arizona ranchers, trying to learn the identities of the Salt River Gang and prevent any further rustling, marks the currency that rancher Frank Abbott turns over to the gang to get his cattle back.
A film director, in bad standing with his studio, tries to turn a local carnival dancer into a "French" movie star and pass her off as his big new discovery.
Riders of the Dusk is another of Monogram's formula Whip Wilson westerns. Since the studio couldn't build an entire film around Wilson's bullwhip prowess, a plot was called for.
Lost Caverns Hotel bellhop Freddie Phillips is suspected of murder. Swami Talpur tries to hypnotize Freddie into confessing, but Freddie is too stupid for the plot to work.
Jack Garrett interrupts a stagecoach holdup where he meets Fuzzy (The town's stagecoach driver, station agent, baggage agent, and sheriff) and banker Jim Thorn.