Jiang Jiangnu is twenty years old, one day shy of turning twenty-one. Following his unreliable bamboo horse to climb the mountains, unexpectedly, they encountered a monkey robbery on the road, which chased the two of them back to the war years. The two organized a collection of organizations, raided the traitor's lair, and rescued old comrades. The two childhood sweethearts were so scared that the Japanese thought something was going on, and they were so frightened that they cried.