Codenamed: Vicious Dog

In 1937, the ambitious Japanese imperialists were ready to launch a war of aggression against China. In order to ensure the smooth progress of its aggression, Japan engaged in various intelligence collection and sabotage activities through secretly established spy agencies. In the process, the Blue Clothes Club also fell into the Japanese trick, and the intelligence station was bombed. Nong Chumin, who serves as a consultant to the intelligence station, finds his brother Fu John, who is both civilized and military but spends a lot of money and lives in dreams, and persuades him to join the Nine-Eared Dog Project to steal the keys to the Japanese secret service.