Zhang Qiang (Alex Fong) is a legend in the legal world. He has a brilliant record in court, but he has been running a small firm K.Cheung & Co. alone for 20 years. There are only three people in the company, including him, his secretary Li Shaohua (Kwok Siu-wan), and his apprentice Zhou Lixing (Ho Kwong-pui). Zhang Qiang values money and fame. It happens that Zhuo Jiyao (Liu Dan), the senior committee chairman of Donald & Co., the largest Chinese law firm in Hong Kong, takes a fancy to Zhang Qiang and invites him to join Donald & Co., the largest Chinese law firm in Hong Kong, to check and balance the ambitious Liu Jinchang (Liao Qizhi); Jinchang was a senior executive of the Securities Regulatory Commission in his early years, with a political and business background and strong connections. Zhuo Jiyao invites Jinchang to become the executive partner of Donald & Co. on the condition that he gives up the chairmanship of the Donald & Co. committee. With the help of his wife Wang Kailin (Li Biqi), Jinchang reaches another peak in his career. Later, he found that Kai-Yiu had no intention of giving up his position, so he cultivated his power in the company, including sponsoring the delisted lawyer Ren Weiliang (played by Cao Yonglian) to switch to a solicitor, and then promoted the inexperienced Fang Ning (played by Huang Zhiwen) to be a senior partner, in an attempt to force the emperor to abdicate. Everything was ready, and Jinchang's last step was to launch a large-scale corporate listing plan to earn the capital to kick Kai-Yiu out. However, Zhang Qiang became a stumbling block at this critical moment, disrupting all of Jinchang's budgets. A legal game that had to be fought became the fuse for the hostility between Jinchang and Zhang Qiang. As a result, Zhang Qiang and Liu Jinchang had confrontations again and again in the law firm.