In the third part of Family with Children, three children grow up one after another. Xia Xue wanted to take the Tsinghua exam, but he missed three points, but he couldn't find a job, so he chose to repeat it, which triggered a series of contradictions. The original good girl, after failing the college entrance examination, became a "problem" teenager, scrambling for plastic surgery, busy with interviews, and sharing the same misery with her family.

Liu Xing rode a bicycle and carried Yu Xia on the rampage in the garden, and collided with an old woman. Liu Xing and Yu Xia ran away when they saw the trouble. When Liu Mei and Xia Donghai got home, they found that something was wrong with Liu Xing and Yu Xia. They have been evasive as if they had done something wrong. The arrival of the witness revealed the secret. It turns out that these two little bastards in their own home are the perpetrators of "wanted". Liu Mei is going to give Liu Xing a good beating. Xia Donghai thinks this is a good time to teach two boys to take responsibility. So, Xia Donghai and Liu Mei took Liu Xing and Yu Xia and bought a lot of things to visit the injured grandma, and grandma's daughter-in-law also received them. The daughter-in-law knew this situation and immediately said that grandma's feet were swollen like bread and had been sent to the hospital. Liu Mei and Donghai know that Liu Xing and Xia Xue are in big trouble. Back in the summer home, Xia Donghai seized this opportunity to talk about the responsibility education for two children, and Liu Mei followed suit. At this time, grandma's daughter-in-law came and took out an invoice for 500 yuan's treatment fee for Liu Mei to reimburse. Liu Mei must pay the price.