In the town of Thiers, summer of 1976, teachers and parents give their children skills, love, and attention. A teacher has his first child, a single mother hopes to meet Mr. Right, another mom reaches out to Patrick, a motherless lad who is just discovering the opposite sex. Patrick befriends Julien, a new student who lives in poverty with his mother and has a terrible secret. Bruno shows his friends how to chat up girls. Sylvie stages a witty protest against her parents. Brothers give a friend a haircut. A toddler falls from a window and is unhurt. Everybody goes to the cinema. At camp, Martine catches Patrick's eye. A teacher explains: "Life is hard, but it's wonderful.。1970年代后期,重新工作的马长青(梁音 饰)携妻带女上任红石矿党委书记,到任后发现分给自己的房子被青年人结婚占用,他一家只好暂栖在办公室。由于受四人帮余毒影响,矿上的青年人打架斗殴为常事,他听从工会主席丁万才(王访波 饰)的建议,对青工进行忆苦教肓,结果事违人愿。马长青深入基层了解情况,他冒雨住进集体宿舍,亲眼目睹了青工们的实际困难。在矿党委会议上,他提出了解决住房,搞好食堂,先生活后生产,并提议民主选举队长。通过一系列举措,矿山发生了很大变化,马长青针对青工中出现的突出问题,总是在第一时间把思想工作做到位......。