The film "The Dragon Slaying Case of the New Seven Heroes and Five Righteousness" tells the story of Song Renzong Tiansheng five years ago, the young Bao Zheng took office in Beijing, but he was involved in a bizarre and mysterious case when he traveled to Jianchang County. Fortunately, on the way, they met Zhan Zhao, the "Southern Hero", and Bai Yutang, the "Jin Mao Rat." Although the three of them were young, they couldn't hide their chivalrous atmosphere. In the process of the three people's step-by-step investigation, strange signs occur...