When a banker finds his stagecoach shipments of gold from Carson City are vulnerable to holdups, he commissions the building of a railroad through the mountains.When a banker finds his stagecoach shipments of gold from Carson City are vulnerable to holdups, he commissions the building of a railroad through the mountains.When a banker finds his stagecoach shipments of gold from Carson City are vulnerable to holdups, he commissions the building of a railroad through the mountains.