In the barber shop, Hong Qingyang, Zhang Shengli and Xiaopang were chatting about summer vacation plans. The arrival of Grandpa An disrupted everyone's plan. He asked the three boys to use the summer vacation to help the library recover scattered books. Xiaoyi, who was working as a stand-in on the set, could not escape. The four children officially formed a book collection team.

After a lot of twists and turns, the four children only took back one recipe. Just when everyone was discouraged, the appearance of Grandpa An’s granddaughter An Ran once again aroused everyone’s enthusiasm. They tried their best to finally get most of the recipes back. Book recycling. Only the books of the mysterious Grandma Yin, Zhu Daqian, and the down-and-out poet have not been recovered.

Several children launched a book collection operation full of affection, ideals and romance for these three people. Xiaopang and Hong Qingyang moved the stubborn and eccentric Grandma Yin with their innocent hearts and took the book back; Xiaoyi moved the poet with his frankness; although Shengli failed to take back the book, Boss Zhu's value on money made him In the transaction with the "one-shot rich", he kept the pure kindness in his heart; Grandpa An also locked the library with peace of mind and retired.

Summer has passed, in Heshun Ancient Town, around the children, the beautiful story continues... Director: Zu Feng, Liu Juan