民国初期的经济中心上海暗潮汹涌，各国势力均集中在此。日本驻上海领事馆大佐井田龙川妄图不费一兵一卒把上海变成日方占时经济特区，绑架了上海市长骆书彰。21世纪少年秦放因偶然机会触碰了“怪”爷爷研究的穿梭机器穿越到此时，因缘际会救了被日本兵追捕的上海市长义女小雪，在小雪的介绍下加入了精武门，并拜陈真为师。在精武门秦放认识了温柔善良的苏然，与精武门的师兄弟们一同习武，岁月静好。井田为了分化中国各方力量，借日本武士松本浩介频频挑战各个中国武馆，武馆皆败北，最后矛头指向了精武门。井田为了让陈真比武输给松本，并借此彰显自己势力，以骆书彰为要挟而让陈真不得不参加松本的挑战……

Shanghai, the economic center of the early Republic of China, was under turbulent occupation, all forces from all over the world were concentrated here. The Japanese Consulate General in Shanghai, Ryukawa Ida, attempted to turn Shanghai into a Japanese-occupied special economic zone without any effort and kidnapped Mayor Luo Shuzhang. Qin Fang, a young man in the 21st century, accidentally came into contact with a time-travelling gadget made by his grandfather and time-traveled to this time. By chance, he joined the Jingwu Sect, and became an apprentice to Chen Zhen as his teacher. In order to divide the various forces in China, Ida used Matsumoto Kosuke to frequently challenge various Chinese martial arts schools. All the martial arts schools were defeated, and finally Jing Wu Sect was chosen as the next to be defeated. In order to get Chen Zhen to fight Matsumoto in the competition, Ida used Luo Shuzhang as a hostage to force Chen Zhen to participate in Matsumoto's challenge.