天天和小伙伴们一起加入到农忙季节，挑战晚稻插秧，摸田螺，感受与自然和谐共存的乐趣与成就感。宽带互联网给小村庄带来新的发展契机，也带给孩子们新的乐趣。无奈暑假作业还是要做，留守儿童东东、“小百科全书”王德、还有“超级暖男”小胖和“数学天才”小美，每个小伙伴对作业的不同态度，让没有上学的天天产生了无数好奇。

During the farming season, Tiantian and her friends help with the farm work together. While transplanting rice seedlings and catching snails, they enjoy themselves and feel the sense of accomplishment of living in harmony with nature. Broadband Internet brings new development opportunities to the village and new fun to the children. But they still have to finish their homework. But for Dongdong, a left-in-hometown boy, the knowledgeable Wang De, sweet boy Xiaopang, and Xiaomei, a "math genius", everyone has a different attitude towards homework, which makes Tiantian, who's not in school, very curious.