The story of the film "Defensive War of the Police Station" takes place in a simple and comfortable town-"Peace Town": In recent years, the people here are comfortable and the folk customs are simple and no major incidents have occurred. The Provincial Police Department has conducted research to save money. The police station in the town will be closed. Outstanding police officer Wang Yihe came to "Peace Town" as a special commissioner. When he first arrived in the small town, Wang Yi just wanted to do things impartially and complete the task as soon as possible and go back to the province. However, the local police officers made various resistances to keep the police station, disrupting Wang Yi's plan, and one after another fraudulent forgeries. The case exhausted Wang Yi's patience, and his prejudice against the police in Heping Town grew.