During her work, community police officer He Jingran accidentally learned that a "garbage village" had formed in the area she was responsible for. In this newly formed floating population gathering area, she rescued two out-of-school children and solved their schooling problems. The two children who lost their parents also became members of He Jingran's family. During this period, her daughter Jingjing had rejected the two new family members, and later she was surprised to find that the two children rescued by their mother were actually the children of the murderer who hurt her father. In this process, He Jingran met the "problem teenager" Zhang Qichen. Zhang Qichen often skipped classes to surf the Internet, and even nearly died while meeting netizens. In the end, he was rescued by He Jingran and others. With the help of He Jingran, Zhang Qichen turned from a "problem teenager" into an excellent student. Another "problem girl" Yang Xiaoyu, rebelled due to domestic violence and almost went astray. He Jingran cared for her with great maternal love and made her return to the right path. The rescued children thought He Jingran had a wealthy and perfect family, but when they came to He Jingran's home, they found out that her husband was a vegetable and had been lying in bed for more than ten years, and she had been guarding her husband day in and day out for more than ten years. The children were deeply moved and called He Jingran "Mom".