The story is set in Baiyangdian Lake in 1934, and begins with Gazi's dream of joining the Eighth Route Army and getting a real gun of his own. Grandma died to protect the old clock of the Eighth Route Army, so Gazi had to go to the county seat to find the legendary Luo Jinbao and play the devil to avenge her. In the county seat, I met Le Tong, the shopkeeper who lives in Jixian, but I didn't avenge Gazi. Instead, I fell into the devil's pursuit. With the help of Le Tong and a mysterious plainclothes, he was out of danger. The plainclothes turned out to have taken Gazi to the secret hiding place of the district team, and Captain Qian took Gazi in. Gazi claimed to be Xiaoba Road from now on, and then fought a curtain-picking battle with District Team No.8 Road, and Gazi seized a real gun. Seeing all the dreams come true, the gun was taken away by the district captain. Gazi couldn't figure it out, so he returned to the county seat with his little friend Pang Dun, who knew about the bet, and wanted to avenge his grandmother alone. At the same time, the rear Commissioner Yan Liu was ambushed in Baiyangdian. Yan Liu didn't know where he was, so the devil sent Shi Lei to pretend to be a special correspondent and mix in the regional group. Gazi accidentally discovered the plan of the devil. He acted together with Le Tong and Pandon, mistaking Chungang, the liaison officer of the district team, as a spy of the devil. Chun has just been subdued by a child, so it is difficult to argue with him. Yu Ying, the daughter of a fisherman in Baiyangdian, saved Yan Liu while fishing. Yan Liu is injured, please go to the city to find the liaison. Yu Ying met Gazi and his gang in the city. The three forces fought wits and wits around the true and false Commissioner. The task shouldered by the Commissioner is imminent, and a large number of drugs will pass through Baiyangdian within the specified time.
As for the devils, Tian Fei and Saito tried to know the situation through spy Shi Lei in the shortest time, and wiped out the Eighth Route Army and drugs in the district team. Captain Qian of the district team gradually saw through the true face, played along and led the devils out. The real journalist Yan Liu is with the children.
After all kinds of misunderstandings and coincidences, the children, under the leadership of Gazi, smashed the enemy's plot, cooperated with the district team's Eighth Route Army to make drugs cross the border smoothly, and wiped out Tian Fei, Saito and other Japanese devils in one fell swoop.