In 1989, the layoff wave swept through the Hongxing Machinery Factory. Worker Lin Zhiqiang smashed his iron rice bowl, mortgaged his family property, and led his brothers to start a business. Facing betrayal by brothers and suppression by competitors, with his hardcore craftsmanship and persistence, he deeply cultivated precision manufacturing, self-developed chips and industrial systems, broke foreign monopolies, and forged the legend of China's heavy industry with the body of an ordinary blacksmith.