During the first Songhu Battle, Zhou Wen (played by Zhang Ruoyun), a son from a wealthy family in Suzhou, made a bet with his classmates to go to the front line to condolences the soldiers.After witnessing the cruelty of war and the passion of Chinese soldiers, I had the idea of ​​giving up writing and joining the army.Zhou Wen changed his name to Zhou Weiguo and attended Whampoa Military Academy.Due to his outstanding performance, he was sent to a German military academy to specialize in special operations techniques.While studying in Germany, he met Jun Takeshita (played by Liu Guangnan) sent from Japan.The two became close friends during their study and life in the military academy.When the Sino-Japanese War broke out in 1937, Zhou Weiguo and Takeshita Jun were recalled to their respective countries. In the end, the two friends could not avoid the fate of meeting each other on the battlefield.After Zhou Weiguo returned to China, he repeatedly performed extraordinary feats, but witnessed his comrades dying one after another. His fiancée also committed suicide by swallowing a gun to avoid being humiliated by the Japanese army.After the Nanjing Massacre, he escaped from Nanjing and decided to go north to join the Eighth Route Army.Zhou Weiguo arrived at the anti-Japanese base area and personally trained China's first special operations team, which repeatedly performed extraordinary feats. Takeshita Shun also organized the most elite Japanese special operations team to confront Zhou tit for tat.In the end, Zhou Weiguo's special forces defeated the Japanese special forces, completely drove the Japanese army out of the base area, and ushered in the final victory of the war of resistance.