When the stage to El Paso is ambushed by road agents, the only passenger able to take a lead in resisting the bandits is retired provost marshal Talbot Rogers. Not only must he lead the other passengers to safety, he also finds himself carrying word to an army base about an imminent Indian uprising. With a band of outlaws dogging his steps and a young girl to protect, it will be a race against time for Rogers to warn the outpost of Fort Williams about the danger about to engulf it.