In 1938, Xiao Xia, a young man with amnesia who was wandering on the streets of Shanghai, accidentally rescued Tang Hanqing, the eldest son of the Tang family, and was accepted by the master of the Tang family as a closed disciple to learn to carve mahogany furniture. At that time, the Japanese army occupied Shanghai. Xiao Xia, who witnessed the atrocities of the Japanese army, gradually recovered his memory. He remembered the painful experience of his family being killed by the Japanese army during the Nanjing Massacre, and began his road of revenge. After killing the devils and avenging his family, Xiao Xia retired to the mountains. Unexpectedly, the benefactor Tang family suffered because of this, and Xiao Xia went out of the mountains without hesitation to rescue them. Later, under the influence of Tang Hancai, the youngest daughter of the Tang family, a patriotic student, he gradually realized the truth that if the country did not exist, the family would not exist. In the end, Xiao Xia grew from a personal avenger to an anti-Japanese hero who fought for national justice under the leadership of the Communist Party.