The Refornment Movement of 1898 resulted in the "Six Heroes" dying. Huo Yuan Jia, who was filled with patriotic enthusiasm, had been eager to participate; however, he fell into the enemy's trap and could only watch as the heroes of the country died. Not long after, China was invaded by the enemy. A year later, Huo Yuan Jia who was now living in ChangZhou took a stroll along the mountainside. Discouraged by his past and in fear of falling into the enemy's trap again, he decided to move to Shanghai. Huo Yuan Jia's following a reputation grew quickly. The Japanese (who had invaded China) grew worried and began to provoke Huo Yuan Jia. Huo Yuan Jia fearlessly charged into battle and finally defeated the enemy with his courageous actions.

The story takes place in the early years of the Republic of China. The Huo family and the Zhao family are the two giants in the martial arts world today. They have been fighting over who is the authentic secret boxer. Huo Yuanjia is the fourth son of the Huo family. People are not optimistic about him because he has been frail and sick since he was a child, and they are not prepared to teach him martial arts. However, Huo Yuanjia, who is extremely perceptive, actually realized the Mizong Fist on his own. On the day when the two families agreed to compete, He used the Mizong Fist and defeated his opponent Cheng Tianxiao. Unexpectedly, Cheng Tianxiao suffered a huge blow and passed away. His apprentice Chen Zhen worshiped Huo Yuanjia as his master. A group of people came to Tianjin. Huo Yuanjia, who was highly skilled in martial arts, quickly attracted the attention of the Japanese and was hunted down. They could only take Qiannan to flee to Beijing and set up the Jingwu Sect.