The film is the introduction of "President Tie": Rick is a middle school teacher. His marriage failed and his job didn't go well. He was transferred from his original work unit and sent to a school called Brandon as the principal. This middle school is notorious for violent crimes. In this school, almost all acts of violence, such as drug abuse, drug trafficking, robbery, rape and so on. , are commonplace, skipping classes and refusing to take the exam is even more unattended. No one who comes here as a principal has a good result. But Rick wanted to run the school well, so he made a "no" charter. But at the first general meeting of all students, Duncan, the leader of the student group, gave Rick a duel. The contest between Rick and the violent gang represented by Duncan began. The students and teachers in the school who gradually accepted Rick's management system were attacked by Duncan and his gang. Rick was annoyed and blamed himself, but Duncan's behavior did not shake Rick's determination to change the school spirit. Rick insisted on fighting Duncan to the end and bringing this black sheep to justice ... Although his determination and style caused dissatisfaction from the society and the police, he finally won and changed the image of the school.

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