There is a guiding education law in the master elder brother. The movie Master Brother is a campus movie directed by Kan Jiawei and starring Donnie Yen and Chen Qiaoen. The film Master Brother tells the story of a new teacher, Chen Xia, who was assigned to a famous poor class in the school as soon as she came in. However, Chen Xia did not give up this group of students, but used special educational methods to arouse students' interest and make them gain knowledge through games. Later, Chen Xia met five students in his class and tried to catch them and keep them from dropping out of school. However, Chen Xia said that she was a teacher after all. Finally, they were expelled from school. After that, in order to prove that Chen Xia's choice was correct and to protect the school from being closed, the students studied hard, but at the beginning of the exam, they were stopped by a group of gangsters. Fortunately, Chen Xia appeared in time, which enabled them to successfully complete the exam, so the school was relieved of the danger of being closed, and Chen Xia could continue to teach in the school.