During the famine of 1959, sixteen-year-old Lin Yujing faced a shortage of food and the show-off and ridicule of her cousin Lin Jiaojiao. On the verge of shock, she awakened the memory and holographic disassembly vision of a heavy industry expert in her previous life. She earned food rations by rubbing scrapped water pumps with her hands, and even impressed the old factory director Song Huaishan, thus crossing the class and entering Fengtian No. 3 Machinery Factory. However, under the rigid system, the deputy director Chu Jianguo suppressed her advanced research and development with extremely harsh methods and exiled her to the air-raid shelter waste warehouse. In the cold air-raid shelter, she endured the criticism of the whole factory, relied on the dark web transactions of the gang boss Yan Tieshan to maintain her strength, and started an extreme struggle with the cold-faced picket Shen Hezhi who was looking for trouble. As high-precision machine tools take shape in the scrap iron pile, hidden murderous intent erupts. The mole Huo Qiming colluded with overseas spies to carry out physical strangulation. The theoretical backbone Xu Changfeng and the broadcaster Gu Qiuyan were martyred in a pool of blood. At the critical moment of life and death, Shen Hezhi tore off his disguise as a picket and turned into a dead soldier to block the hail of bullets for her.
After ten years of dormancy, the curtain of reform and opening up has begun. Lin Yujing went south to Pengcheng Special Economic Zone and faced the technological blockade and capital stranglehold of overseas oligarch Andre and comprador He Lanting. When the capital chain is broken and everyone is the enemy, the top-secret [Breaking File Zero] is suddenly unsealed. Lin Yujing was shocked to discover: Chu Jianguo's cruel exile was to avoid the sight of enemy agents, and the old janitor was a dead soldier transporting top-secret titanium alloys. She never walked alone, and behind her was the country's bloody escort at all costs! With the hot blood of generations of ruined lives, Lin Yujing smashed Andre's patent barriers with overwhelming force. In the end, the roar of the great power's heavy weapons echoed across the ocean. She and Shen Hezhi stood side by side, creating an unshakable steel republic.