 Gene Autry (Gene Autry), star of a singing show with the Cass County Boys (Fred S. Martin, Jerry Scoggins and Bert Dodson) billed as "Gene Autry and his Texas Rangers", is mistakenly believed to be an actual Ranger sent to Mountain City investigating trouble on a toll road operated be Jen Larrabee (Gail Davis). Gene discovers the Doc Judson (Grandon Rhodes), the local eye doctor, is behind the trouble so that Jen will sell him her property which contains valuable mica deposits. With the aid of his pal Smiley (Smiley Burnette) and the Cass County Boys, Gene gets the evidence necessary to turn Judson and his associates over to the real Rangers.