Through thirteen cases, this drama tells the story of a group of righteous lawyers in Hong Kong who fought verbally in court and experienced various emotional tests outside the court. One day, Ah Chao and others sought revenge on Ah Quan and killed Ah Quan in the street. Policeman Zhou Wenbin (played by Luo Yingjun) happened to be there and immediately arrested Ah Chao. Prosecutor Ding Rou (played by Chen Xiuwen) handed the case to his subordinate, the newcomer Chun (played by Au-yeung Bobby). Chun actually had a crush on his boss, but Ding Rou had already had someone in her heart and was even more distant from him. On the other hand, Queen's Counsel Song Yun (played by Su Xingxuan), who had just helped a murder suspect clear his name with his outstanding experience and skills, took over Ah Chao's case and became his defense lawyer. In order to train his daughter Cheng Zhou (played by Liu Meijuan), Song Yun let her take full charge of Ah Chao's big case and gave her instructions from the side. Cheng Zhou collected evidence everywhere with the guidance of her mother and the help of her elder brother Cheng Yu (played by Tao Dayu), and a verbal battle is about to begin!