The TV series "Kill Kou and Decide" is set in Tianjin during the War of Resistance against Japanese Aggression period, and tells the story of six old friends and patriots led by Zray of Beiyang University, Li, Ai Xiaoman, Ji, Leng Yinfeng and Feng Yonggui, who went to Tianjin to kill Japan and formed a bloody killing group.

At the beginning of 1937, the war was on the verge, and the waves in Tianjin were treacherous. Lu Zizheng, the only son of Tianjin guarding city general Lu Youyi, is handsome, aggressive, intelligent, aggressive and distinguished between good and evil. Li, the only son of a famous Beijing opera star, is always in opposition to Lu Zizheng. They are all competitors inside and outside the school.

Zhao Jing, a reporter from Life Daily, whose real identity is the stationmaster of Tianjin Underground Party Liaison Station, has received the latest task: a batch of Japanese arms are being secretly transported to Tianjin. Okamoto, the biggest leader of the Japanese army in Tianjin, will use these arms as weapons to conquer Tianjin. The organization ordered Zhao Jing to confiscate these arms at all costs and go to the mainland's anti-Japanese front.

Yang Yang plays Zhao Jing.