A young man leading an aimless life finds that he must change his outlook to life when he falls in love with a hard working letter carrier. As he tries to impress her by collecting and learning about postage stamps, he acquires a rich, diverse knowledge of China's history and accomplishments and even wins the top award in a national quiz competition among Chinese factories.

The handsome and handsome young man Qu Xinde (played by Lu Qing) has a character that is not flattering, and he often does things that harm others and play clever things that are not good for himself, such as cutting in line to buy tickets, throwing watermelon skins, making loud noises, etc. For this reason, the two girlfriends who were engaged parted ways with him, and Qu Xinde, who felt good about himself, didn't know it at all, and still felt good about himself. 　　

In a commune at the Xiaoliang river, two ideologies clash: how should the river be used?