In the seventh year of Emperor Xianfeng's reign in the Qing Dynasty, Zhou Tai of the Southern Zhou Boxing Gym learned that a foreign company in Guangzhou was deceiving workers and trying to sell them overseas as slaves for profit. He teamed up with Li Qiang of the Northern Li Boxing Gym to stop the company's conspiracy, but was retaliated by the company and the boxing gym was destroyed. In the end, he unraveled the truth with Li Qiang.