Through thirteen cases, this drama tells the story of a group of justice lawyers in Hong Kong who are verbally fighting in court and experiencing various personal emotional tests outside the court.One day, A Chao colluded with others to seek revenge from A Quan and killed A Quan in the street. Policeman Zhou Wenbin (played by Luo Yingjun) happened to be present and immediately arrested A Chao.Prosecutor Ding Rou (played by Chen Xiuwen) handed the case to the new subordinate Zai Chun (played by Ouyang Zhenhua). In fact, he has always secretly admired his boss, but Ding Rou has already belonged to him and is even more intimate to him. On the other hand, Song Yun (played by Su Xingxuan), the imperial lawyer who just relied on his outstanding experience and skills to help a murder suspect clear the crime, took over the case of Achao and became his defense lawyer.In order to train her daughter Chengzhou (played by Liu Meijuan), Song Yun asked her to be fully responsible for the big case of A Chao and gave her guidance from the side.With the guidance of his mother and the help of his elder brother Chengyu (played by Tao Dayu), Chengzhou collects evidence everywhere, and a verbal battle is about to begin!