Hong Sanyuan took his mother and friend Qi Lin to Shanghai to join Yanhua and became involved in the power struggle between the two major companies. Yan Hua was a dock worker at this time. He was elected as a worker leader without fear of power. Hong Sanyuan relied on his wit to save the day on the dangerous Shanghai beach many times. Hong Sanyuan and the loyal man Shen Da became sworn brothers. In a battle of wits and courage with Lin Yiyi, who came to Shanghai to take revenge on his father, they became irresistible. Lin Yiyi, who was disguised as a man, fell in love with Hong Sanyuan. Hong Sanyuan gets close to Yu Mengzhu, a rich girl, and Yu Mengzhu falls in love with Hong Sanyuan.
