During his tenure at Jiangyuan Food Factory, Li Jianghai suffered joint suppression from his wife Song Jingwen and section chief Yue Mingke, and was even maliciously deprived of his authorship rights for his technical achievements. Facing injustice, he remained calm and secretly gathered conclusive evidence of Yue Mingke's corruption, bribery, and past crimes. Afterward, Li Jianghai teamed up with his younger sister Song Wanqing to completely expose the truth behind the scenes. In the end, Yue Mingke was brought to justice according to law, and Li Jianghai successfully cleared his name of grievances, reclaimed the core formula, and reshaped the factory's order.