1950年代，福建闽江。白花洲互助组长李银花（李玲君 饰）和共青团员杨小龙（史久峰 饰）自幼青梅竹马，有着共同的志向。小龙的父亲杨才发（张伐 饰）是单干户，在走互助合作的道路上父子俩有分歧。银花组里也有几个自私自利的人，他们因评工分不合理起过争执，后来银花主持公道，才化解了矛盾。小龙想借父亲生日让银花帮他做爸爸的工作，结果串门的安安（史原 饰）一通瞎说反而让杨才发更加生气。桔树闹起虫灾，杨才发想用独家“秘方”灭虫，结果失败。关健时刻，银花依靠上级党组织，从区上运来了杀虫剂和喷雾器，帮桔农们度过了难关......

An episode from the life of a metallurgical plant collective. Lu Zhong-kui, an advanced worker appointed as head of the smelting shop, initiates the re-equipment of the open-hearth furnace. The plant director and some specialists warn him that the furnace, built by Americans, is operating at maximum capacity. However, many refer to the experience of the Soviet people and support Lu. And then an accident occurs: steel bursts out of the furnace... This episode is full of drama, as is the entire story about the selfless and persistent struggle of a worker-promoter to fulfill the state plan.

Set in a village in north China, a veteran leads villagers to raise productivity by scientific methods.