Three seconds before the gunshot, Ji Jiujiu was held to the back of the head with a gun by one of his own. The top-secret city defense map he had just intercepted was regarded as irrefutable evidence of collaborating with the enemy. No one knows that this drunken little section chief of the puppet army is actually the most lurking lone wolf. Listen to the footsteps to identify the secret whistle, use the wine bureau to get information, and the coughing sound hides the Morse code. When the Special High School thought he had locked the "big fish", he used a false intelligence letter to let two enemy regiments fight each other late at night; the traitor who dared to identify him in public was "sold" to the enemy in the next second, along with a truckload of explosives. In the war-torn times, he alone was an underground Great Wall.