When he learned that railway workers had discovered human skull fossils in Huange River, Ma Zutang praised the first team, and Luo Xiangqian thought it was Ye Lan's contribution.

Ma Zutang received reliable information that Kuomintang agents were going to sabotage the July 1st Opening Ceremony. He immediately called Luo Xiangqian and Zhang Biao to discuss countermeasures. He sent Luo Xiangqian to cooperate with the local police to strengthen vigilance along the railway line and at the scene to investigate everything.Suspicious people, etc., to ensure that the celebration is completed safely and smoothly.

Sha Kai couldn't sleep at night. Chen Yuanlong forced him to bring the bomb to the celebration site before ten o'clock. The agents would blow up the railway tracks. Sha Kai knew that this was a capital crime, but he did not dare to disobey Chen Yuanlong's order, otherwise he would die.Early the next morning, Ye Lan came to call Sha Kai to attend the celebration. Sha Kai lied about having a stomachache and asked Ye Lan and the worker representatives to go to the scene first.

Shakai returned to the dormitory carrying the biscuit box filled with explosives. He didn't know where to go. He was so anxious that he beat his chest. Shakai suddenly came up with a clever idea. He used scissors to remove the explosives from the biscuit barrel.Luo Xiangqian led the workers to carefully investigate along the railway line. When Chen Yuanlong saw them walking away, he took the spies to install explosives on the railway tracks.

Someone called Ma Zutang to report that the agents were going to blow up the railway tracks. Mazutang immediately sent someone to report the news to Luo Xiangqian. Luo Xiangqian did not dare to take it lightly and asked the workers to speed up and check carefully along the line.Chen Yuanlong and the others had just buried the explosives and were about to leave. Luo Xiangqian arrived in time and killed them on the spot.Before he died, Chen Yuanlong confessed that the explosives were at Luo Xiangqian's feet. The train was roaring towards him and he was about to arrive. Luo Xiangqian took out the explosives with lightning speed and threw it far away.

Ma Zutang sent Luo Xiangqian to check the person who called to report the news. He found out that Chen Yuanlong and Sui Li were very close.Luo Xiangqian came to the dormitory to see Shakai. Shakai claimed that he was well, so Luo Xiangqian left with peace of mind.Sha Kai called Ma Zutang to report the secret agent's plot to blow up the railway tracks. He defused the bomb in the biscuit box, but he was still uneasy. Sha Kai couldn't wait to ask Zhang Biao about the celebration, and Zhang Biao told Chen Yuanlong that he had planted explosives and was shot dead.Sha Kai was relieved when the incident was revealed. Zhang Biao clearly remembered that Sha Kai once drank with Chen Yuanlong, and he was extremely drunk that time. Sha Kai tried his best to distance himself from the relationship with Chen Yuanlong.

Zhang Biao felt that Sha Kai was suspicious. He rushed to attend the celebration, but backed down at the last moment. Zhang Biao was puzzled and reported to Luo Qianqian.

Li Muyang's well-designed sabotage operation completely failed, and Chen Yuanlong was shot dead. He hated Sha Kai's behavior of escaping from the battlefield and vowed to launch another plan to sabotage the Chengdu-Chongqing Railway.

The bureau party committee decided to hand over the pier and slope projects of the Tuojiang Bridge to Luo Xiangqian's First Brigade and Zhou Dafeng's Eighth Brigade. Luo Xiangqian was eager to compete with Zhou Dafeng, but Zhou Dafeng had already ledPeople went to the site to investigate.Sha Menghai came to see Sha Kai. Sha Kai asked Sha Menghai to transfer him back to Chongqing. Now is the time to employ people. Sha Menghai persuaded him to stay and continue building roads. Sha Kai had to express his worries. He and Chen YuanlongAfter drinking several times, Sha Menghai was worried that Luo Qianqian would hold on to the matter. Sha Kai repeatedly assured that he and Chen Yuanlong were just casual acquaintances, and Sha Menghai felt relieved.

Luo Xiangqian led a large group of workers to the construction site of the Tuojiang Bridge. They met Zhou Dafeng head-on. The two refused to give in and wanted to have a public competition. The construction of the Tuojiang Bridge began in the late Qing Dynasty. However, due to the ignorance of the Qing government, only a few bridge piers were built.He gave up and Luo Xiangqian took Ye Lan for an on-site inspection. Ye Lan felt that the bridge piers could still be used.

Luo Xiangqian asked Zhang Biao to settle the workers as soon as possible, and Ye Lan suggested going under the bridge to investigate the condition of the piers.Sha Kai had nothing to do and went fishing alone by the river. Li Muyang came to him to settle the score and threatened to report him for colluding with the Kuomintang agents. Sha Kai was so frightened that he begged for mercy. Li Muyang brought Sha Kai to see Sui Li. Sui Li had already prepared wine and food., Sha Kai lied that he had a stomachache and couldn't eat. Sui Li kept urging him to drink and even fed food into his mouth. Li Muyang brainwashed Sha Kai on the side, claiming that the Americans would come soon and advised Sha Kai to take this opportunity.Show loyalty to the party and the country and make contributions.