 U.S. Marshal Nevada Jack McKenzie (Johnny Mack Brown) halts a runaway stage and finds the driver dead and his helper badly wounded, and the stage robbed of a gold shipment. John Corbett (Kenneth MacDonald), owner of the saloon and secret leader of the outlaw gang, tries to induce the mine owners to help him get the express company franchise, insisting that he can stop the holdups. To mislead them, he pretends sympathy for Jane Burns (Jennifer Holt), current holder of the franchise. Nevada s pal and fellow Marshal, Sandy Hopkins (Raymond Hatton), arrives in town incognito, shows antagonism toward Nevada, wins Corbett s support and is made sheriff. Ned Turner (Riley Hill), Jane s sweetheart and stage guard, urges her to keep the franchise and, when Nevada offers to drive the stage, they win permission from the mine owners to try one more trip over the unused Lost Trail.