After recovering from his illness, Jiang was sent to the racecourse by his superiors to organize an iron trade union to manufacture guns. Under the cover of his father's trading company, classmate Shen Yue went into Shuyang County to work underground. When Jiang came to the racecourse, he found that the local blacksmith made guns by hand, which was inefficient and the quality was not guaranteed. He was very depressed. He happened to meet Cui Tiefei passing by, and they had an argument about making guns by hand. Finally, two people compete in the street. Jiang found that the quality of hand-made guns was not worse than that of the March 8th Cover.
As a result, Jiang began to organize iron and blood trade unions, but was threatened and destroyed by Xu Dayong, the tyrant leader of the soil gun. Jiang wanted to drag Cui Tiefei's gunsmith into the Iron Blood Trade Union to compete with Xu Dayong, but Cui Tiefei's father, Cui Chengzong, only did business and didn't ask politics. Xu Dayong is also wooing Cui's family, and even betrothed his daughter Xu Lingzhi to Cui Tiefei.
In order to defend the iron trade union, Jiang established his own armed force: the Iron Guard, and incited the workers to hold the election of township heads. On the day of the election, Xu Dayong took Wang Lai, the captain of the national defense team, to pay tribute and Jiang designed it. Lying about the Japanese army's raid scared Wang away, and finally defeated Xu Dayong in the election, and Jason Wu, the chairman of the iron trade union, became the new township head.
Xu Dayong is unwilling to fail. His subordinate Ma Yuantu first seduced the robber Gao and attempted to assassinate Jiang. Later he told the Japanese that Cui Tiefei had killed Tanaka. Yamaguchi led a group of people to sweep, while Jiang led people to evacuate. Cui Chengzong was captured and killed by Yamaguchi before he could retreat.
For revenge, Cui Tiefei led Cui's family to join Tiemeng. The iron trade union is gradually on the right track, but the production technology is backward and the gun output is very low. Jiang asked his superiors to send experts from the base area to help. Unexpectedly, the news leaked, the expert was killed, and the iron guard who greeted him suffered heavy casualties. On the way back to Machang, Cui Tiefei pulled a group of college students from Shanghai to Machang, among whom were college students who had always had a crush on Jiang.
With the help of Zhou Jianmin, the steel union reformed the assembly line and made some earth-moving machinery, which greatly improved the productivity. At work, Cui Tiefei has a good impression on Jiang, but with the trouble with this pair of rivals, the relationship between the four corners is very tangled and lively.
On the other hand, hostile forces have never stopped their destructive activities. The Japanese bombed the racecourse many times, and the king of the national army provoked friction, robbed the guns sent by Tiewei, and injured the captain of the district brigade. Jiang and Cui Tiefei resolved one by one, so that the residents of Machang learned the means of air defense, and made their own anti-aircraft guns and destroyed a Japanese plane. Finally, they made a plan to play hard to get, destroyed Wang's department and made Xu Dayong commit suicide. Xu Lingzhi was heartbroken, and Ma took refuge in the Japanese for a long time.
Seeing that the iron trade union was growing day by day, the Japanese army organized two brigades to encirclement and suppression, occupied the horse factory in one fell swoop, and established a stronghold in the horse factory to destroy the iron trade union repeatedly.
Jiang withdrew the iron trade union to the countryside, and hundreds of workers were armed, fighting guerrilla warfare with the Japanese puppet army while producing. Tiewei led by Cui Tiefei gave full play to the advantages of guerrilla warfare and dealt with the Japanese puppet troops. In addition to traitors, harassing Japanese detachments, looting supplies, and even entering the county to assassinate Yamaguchi, the Japanese army was exhausted and Yamaguchi frequently felt the feeling of "throwing butterflies with iron hoofs".
However, the production and living environment of the Iron Federation of Trade Unions is also extremely bad, with heavy casualties of workers and soldiers, especially the shortage of raw materials, which makes it impossible to start work. Zhou Jianmin was ordered to go to Shanghai to buy special steel.
Who knows that the underground intelligence system in the city was cracked by the Japanese army, Shen Yue was forced to flee the county seat, and Zhou Jianmin was captured by the enemy. Yamaguchi used Zhou Jianmin as bait, set a chain trap, and tried to catch Tiewei all at once. Cui Tiefei succeeded in rebelling against Xu Lingzhi because the Japanese intelligence she provided frustrated the Japanese conspiracy many times, and the enemy and I fought to the death on the intelligence front.
The moment of decisive battle has come. Yamaguchi led an army to besiege the main force of the New Fourth Army in Machang. Jiang and Cui Tiefei took advantage of the emptiness of the county defense, raided the county, rescued it, tricked Yamaguchi into returning to the county, and annihilated it under the city wall. The whole army at Yamaguchi was destroyed, and he killed himself with a gun. Then Ma Chang surrendered and returned to the people's arms.
Until the victory of the Anti-Japanese War, the iron trade union made more than 7,000 rifles based on Machang, which made great contributions to the Anti-Japanese War.