In the 1930s, Foshan, the capital of Chinese martial arts, had a prosperous martial arts, and various schools and schools were recruited disciples, and they often competed collectively to show their strength. Ip Man learned martial arts but was low-key, so he didn't set up apprentices, and only stayed at home to learn and study martial arts behind closed doors with friends. In order to become famous in Foshan, the northern martial artist headed by Jinshanxun severely frustrated the masters of various factions. In order to win the approval of Foshan citizens, Jinshan was determined to challenge Ye Wen, who was not about world affairs, and broke into Ye's house to force Ye Wen to take action. With the encouragement of his wife Zhang Yongcheng, Ip Man made a move and beat Jinshan with his proficient Wing Chun. After this battle, Foshan set off a blazing Wing Chun upsurge.
The good times were not constant, the Sino-Japanese War broke out, Foshan fell, and the Ye family mansion was forcibly occupied by the Japanese army, and Ye Wen was forced to take his wife and children into the abandoned house. The life of Ye Man's family is difficult, but Ye Man still faces it positively. He changed his attitude toward the poor and went to a coal factory to work as a coolie and to be self-reliant. While all the Chinese were working silently, a group of Japanese soldiers came to make trouble. The translator who accompanied the Japanese army chief, Colonel Sato, was the former Foshan police patrol Li Zhao. The Japanese general Sanpu was a martial idiot, so he rewarded him with white rice and invited the Chinese to the fighting arena to learn from the Japanese army in order to observe Chinese martial arts. Ye Man's friend Wu Chilin insulted Sanpu in the fighting arena and was beaten to death by General Sanpu. In order to find Wu Chi Lin, Ye Wen went to the fighting arena and saw that Master Liao was shot and killed by Colonel Sato. Ye Wen then vented his grief and anger on the battlefield, and beat the Japanese with one enemy ten. General Sanpu admired Ye Man's skill and expressed his expectation to fight Ye Man. Zhou Qingquan, Ye Wen's best friend, was turned into a bandit by Jinshan for blackmail. In order to feed the workers, Zhou Qingquan did not abandon the factory and evacuate. Ye Wen understood that everyone has his own mission, so he stayed in the cotton factory to teach the workers to defend themselves with Wing Chun. Jinshanzhang struck again. Under the leadership of Ye Wen, a group of workers rallied to fight back with Wing Chun. Jinshanzhang was beaten and deaf.
General Sanpu led troops to the cotton factory to capture Ye Wen and asked Ye Wen to teach the Japanese Chinese martial arts. Rejected by Ye Wen, he said that he only wanted to fight a decisive battle with General Sanpu. Colonel Sato set up an ambush in order to get General Sanpu to win. Although Ip Man is known to be in crisis, he still fights Sanpu's karate with Wing Chun. The two compete in the ring. In the end, Ye Wen defeated General Sanpu to rectify the name of Chinese martial arts, but was shot by Colonel Sato. Li Zhao ventured forward, took Colonel Sato's pistol, and shot Colonel Sato to death. Everyone rushed forward and helped Ye Wen and others to evacuate. Finally, with the help of his friend Zhou Qingquan, Ye Wen fled Foshan and headed for Hong Kong.
