Set in the late 1920s, the play reproduces the secret story of Yanzixia's struggle with black forces, northern warlords and Japanese troops in the Republic of China, providing a new perspective for interpreting Yanzi.

The plot of a play

Under the cover of Daniel, Li San wanted to go to the police station to catch the thief on the pretext of reporting the case. Then Li San found the room under the police archives, took out the explosives and stuck them on the ceiling. When the bell rang at twelve o'clock, Li San lit the explosive, and the sound of the explosive explosion was drowned out by the sound of the big clock. No one knows what happened in the police station. Li Sanhe and Shi Jing sneaked into the archives room and began to look for information.

Li San did find Li Yunfei's information in the archives. According to the data, a man named Liu Jinheng may have a lot to do with this treasure. Joy chen found that Li Yunfei's files in the archives were passive and realized that someone was looking for this treasure.