The story begins in Beijing in the 1970s. The youngest son of the Guo family was born, and his two elder brothers loved him very much. However, in an accident, the eldest son accidentally killed his neighbor and was imprisoned. After being released from prison, the eldest son's situation did not improve much. He spent his days in confusion. Finally, he decided to go to Inner Mongolia to find himself. The second son started out by selling vegetables, and then set up a mutton stall. As long as it was a profitable business, he was interested in getting involved, but he always suffered losses in money because he had no experience and brains. The third son went to university to receive higher education, and after graduation he entered the stock market. Under the guidance of his master, he quickly got on the right track and his business got better and better. The fourth son had a congenital defect, but he did not get discouraged or give up. Instead, he kept working hard to break through himself and finally found the value of life.