The demobilized soldier Ai Chengchuan and Li Hua are determined to change the poor appearance of their hometown. They went back to start businesses and explore the market. They have gone through a lot of hardships and tribulations. By starting with承接air conditioner installation business, they gradually developed to the research and production of lithium bromide central air conditioning and achieved success in their careers. At the same time, their love also blossomed. Li Yingcai cares about his fellow townspeople, resigned from his official position, and returned to his hometown to be the village party secretary. He led the villagers to set up factories, accumulated experience through failures time and time again, and eventually succeeded in winning the bid for car bumpers. My farmer brothers.