Lei Ming, an unusual educator with the mission of saving poor students who have been abandoned by society, his philosophy is incomprehensible. Over the years, Lei Ming has been looking for students who are in deep trouble, but few schools have been able to understand and embrace his unique teaching philosophy. Even his father, who was a teacher, could not understand his son's beliefs. Only the principal of Longhai School has the same vision as Lei Ming, and he is convinced that Lei Ming can work miracles, because he himself has been rescued from a desperate situation by the help of a teacher.
However, after the school merged into Minglong, Lei Ming found that he did not have all the appointment powers, and could only fight for a glimmer of life for Class 11. Faced with threats from other teachers, he only had one day to gather five students or else he would be ostracized by the school. However, Lei Ming was bold and convinced that he could do it. So, in a short period of time, he found Cheng Yushan and Li Ran, two seemingly hopeless students.
Following Li Ran, Lei Ming learned about his genius ability in physics and saved Li Ran, who had strayed into the police station. Lei Ming's persistence and care finally touched this indifferent teenager, Li Ran also made up his mind to change his life, no longer live under the fence, for the sake of his grandmother, he decided to welcome the change.
Cheng Yushan, on the other hand, longs to escape from the poisoned family because of his mother's cowardice and his stepfather's hateful surveillance. She doesn't want to use low scores to win her mother's love anymore, but hopes to change her fate through her own efforts. At the same time, although Bian Xiaoxiao is only pursuing the attention of the live broadcast on the surface, she is actually suffering from a lack of love. In order to fit in with the collective, she had to cater to others and do things she didn't want to do. Lei Ming and Sang Xia's love allowed these children to gradually find new value in life.
Yu Yang, a child who lacks self-confidence in his heart, has been bullied for a long time. But under the encouragement of thunder, Yu Yang gradually stood up and faced the bully. This group of children changed their lives through the college entrance examination, and Lei Ming, who had led Class 11 for more than ten years, chose to die when he retired honorably.
People were puzzled by Lei Ming's choice, until Li Ran came to his home and revealed the secret of Lei Ming's heart. It turned out that Lei Ming's original intention to create Class 11 was not out of impulse, but from the story of him losing a student due to prejudice when he was teaching for the first time. This poor student committed suicide in despair, which became a painful scar in Lei Ming's heart, and he founded Class 11, in fact, to atone for his sins, in order to save more forgotten souls. Thundering, and finally completed that original intention with his own life. He lit up a ray of light in the darkness and gave new hope to the students of Class 11.