Eileen (Hilary Swank Hilary Swank) took her first educational job as a teacher in a terrible class at Wilson School. There are students who bring nightmares to teachers: they waste their time, killing time, treating school as a playground before the age of 18; to make matters worse, students come from different races and underclasses in society, fighting each other in gangs. Eileen tried to keep the hatred away from the children's hearts and dispel the hostility between them, but as a white teacher, the children built a lot of walls against her, and Ailin's educational ideal hit the wall again and again in reality. Whether the hearts of the children who have fallen into the abyss are hopeless, and whether their future can be revived under the guidance of Eileen. Ailin bears a heavy burden on her shoulders. She has only one Anne Diary that can influence the children. and a warm and sincere heart to lead the lost child to the light.