In Shanghai in 1930, the chivalrous thief Xiao En, the singing girl Yin Xueyan, the female reporter Yuan Bingbing, and the police chief Gu Xiongfei became entangled in a murder case. They soon discovered that there was a shocking secret behind the murder case - there was a force in the dark, cooperating with the Japanese intelligence organization "Genkai Society" to plot to steal the national treasures of the Forbidden City that had moved south. In the process of solving the case, dangers arose everywhere, and the national treasures changed hands several times. Xiao En finally found out that the boss behind that force was Gu Xiongfei's biological father Tong Yuanshan. Yuan Bingbing fell in love with Xiao En but had no response. Gu Xiongfei, who had a crush on Bingbing, was deceived by his father and turned to be an enemy of Xiao En. The two were in a state of conflict. Xiao En insisted on tracking down, but he uncovered the mystery of his life experience. It turned out that Tong Yuanshan defected to the enemy on the eve of the Xinhai Revolution and killed Xiao En's father. After the victory of the revolution, he stole the name of a hero. Under the blazing flames of fame and fortune, in the concrete jungle of Shanghai, the four young people also faced emotional choices and the test of love and hate. In the end, they used their blood and lives to preserve the Chinese treasure.