Grandpa Cao Huali, stay day learning talents of mechanical major. The Japanese heavy press finally roused him to resist the determination, and the Communist Party of people hand in hand crushed the Japanese built weapons factory plan, but also lost fiancee, daughter, sister et al. My grandfather is downhearted, just want to shuffle off this mortal coil. In Japanese when hunting, was saved by street sell female red, and accidentally involved in Japanese "western plan" crisis. In order to struggle for more than a hundred workers and by the Japanese to kill kill revenge, expose the Japanese assassinate Democratic patriots conspiracy and obtaining evidence of the Nanjing massacre. Grandpa Cao Huali secretly supporting the underground party help and juntong agent, engaged in a fierce struggle with the Japanese tegaoke legend. My grandfather with its superb intelligence and rise above the common herd machinery professional skills, finally rescued the Democratic patriotic, and assist the Eight Route Army made a mountain artillery, destroy the Japanese "western plan" secret base, to obtain evidence of the Nanjing massacre, made an indelible contribution for the victory of the Anti Japanese War and the great Tokyo trial.