剧情：埃德蒙·奥布莱恩和他的团队铁路建设男子试图建立通过山口铁路线，同时有一批不认真建筑工人破坏整个操作，希望他们能得到他们的轨道。 Edmund O'Brien and his team of railroading men try to build a rail line through a mountain pass, while a group of less scrupulous construction workers sabotage the entire operation in the hopes that they can get their tracks laid first and get the money from the railroad.