Director:
Luo Xiangqian led the soldiers to build the roadbed. He explored the layered filling and tamping method to solve the problem of insufficient stability of the roadbed. In the autumn of 1950 / the Korean War broke out and the volunteers entered North Korea to fight. Luo Xiangqian was left behind. He led a migrant worker brigade to build the Tuojiang Bridge / the largest bridge. Unexpectedly / it was sabotaged by secret agents and many migrant workers died. Luo Xiangqian vowed to repair the Chengdu-Chongqing Railway and comfort the fallen workers. In the Baishu'ao tunnel section / he and technician Ye Lan were working with migrant workers when a landslide suddenly occurred. Many migrant workers were buried and Luo Xiangqian was suspended. After investigation / it was determined that the collapse was a geological disaster. Luo Xiangqian resumed his duties. The migrant workers worked overtime and the tunnel was quickly completed. On July 1 / 1952 / the entire Chengdu-Chongqing Railway was opened to traffic. Luo Xiangqian and Ye Lan held a unique wedding in the carriage.
Cast:
1950年6月15日，在成渝铁路开工典礼上，团长马祖堂把“开路先锋”旗帜交给先锋连连长罗向前。罗向前带着战士们修筑路基，他探索分层填土打夯法，解决了路基稳固性不足的问题。1950年秋，朝鲜战争爆发，志愿军入朝作战，罗向前被留下，他带着民工大队修建最大桥梁沱江大桥，不料遭遇特务破坏，牺牲了很多民工。罗向前发誓一定要修好成渝铁路，告慰牺牲工友。在柏树坳隧道路段，他和技术员叶岚带着民工们正干着，忽然发生
