In 1940, the Japanese invaders agreed with the Wang Puppet regime and planned the "Breaking Plan" intended to destroy the material supply chain in our rear areas.
Twin brothers Shi Jinyu and Shi Jinyi, one running in the open and the other lurking in the enemy camp, jointly obtained top-secret information and sent it to Jiangcheng.
The undercover Japanese spy "Zhi Yuan" lurking in the military reunification base camp intercepted the information, and the Japanese military police and special high-tech intercepted and killed Shi Jinyu along the way.
Rong Jing, Tie Yingshan and the 38th Army special team covered Shi Jinyu to break through the blockade and return to Jiangcheng with difficulty.
However, undercurrents are lurking in Jiangcheng. The Japanese "Beiwei Army" and the "Five Cherry Blossoms" of the special high school, as well as the inner ghosts "Zhiyuan" and "Mole", are constantly deploying assassinations and sabotage; the military commander and police chief of Jiangcheng Shen Xiaochen covets and suppresses Shi Jinyu and the underground party.
Faced with the intertwined murderous intentions and conspiracies inside and outside, the twin brothers Shi Jinyu and Shi Jinyi could only open the way with blood, protect the lifeline of the country, and walk towards the light alone in the darkness...
