Guei (played by Cui Lin) is a seventeen-year-old country boy who came to Beijing to make a living. Along with a number of other boys from the country, Guei finds employment with a courier company, which assigns them brand-new bicycles for use in their deliveries. The company manager (Xie Jian) announces to them that since the bicycles do not yet belong to them, they will only earn twenty percent of the commission. But once they have made enough deliveries to earn the bicycles, their share will be raised to fifty percent. Within two months Guei has made enough to earn his bicycle. However, on the day that Guei is due to take over the ownership, the bicycle is stolen while he is picking up a document. The manager fires Guei for neglecting to deliver the package, but, upon the latter's pleas, agrees to take him back if he succeeds in recovering his bicycle.