Zhang Zhenguo, a grade-nine bench worker with forty years of experience at Hongxing Machinery Factory and possessing top-tier craftsmanship, should have enjoyed a three hundred thousand talent subsidy, but was ostracized by deputy factory director Li Jianjun and others. The subsidy was canceled for no reason, and his credit was stolen by his confidants. The disheartened Zhang Zhenguo resolutely resigned. After he left, the factory's core precision equipment rapidly paralyzed, facing massive liquidated damages. The management applied pressure in every possible way, combining coercion with enticement, and even forged evidence in an attempt to pin the accident responsibility on Zhang Zhenguo. Relying on the retained evidence and uniting with a lawyer, Zhang Zhenguo uncovered a series of criminal dark secrets of the management.