Riders of the Pony Express (1949)

In a rigged gunfight Tom Blake is forced to shoot a man in self defense and is then hunted for murder After a long trip fleeing the posse he uses a false name and joins the Pony Express which is just about to commence operatons Relegated to the most dangerous section of the route he finds himself fighting the District Managers scheme to sabotage the inital run But just then a wanted poster with his picture on it arrives