1943 Sun Daxing, a small correspondent of the Third Independent Regiment of a certain unit of the Eighth Route Army, was injured in the leg in a battle. The organization decided to send Wu Jianhua, a small medic, to nurse Sun Daxing, and to recuperate at my home in the underground party member in the enemy-occupied area. As a result, Daxing and Xiaowu hid in Liu Ji as the apprentice of carpenter Jin Xiwu and the grandson of Uncle Liu respectively. One day, Lao Jin took Daxing and Xiaowu to spy on the enemy. Daxing cleverly got into the enemy's stronghold and found out the enemy's true intentions. In order to protect information, Lao Fan died heroically, and Lao Jin was also arrested to cover two small eight-way roads. The Independent 3rd Regiment got the information from Xiaowu and acted immediately. Mishima squadron was hit by our army. During the liberation of Liu Ji, the ferocious Mishima was killed by two small eight roads. Daxing and Xiaowu marched bravely in the ranks of the Eighth Route Army. Although they have caused some troubles and exposed their goals, their spirit is worth learning from everyone, and they have added information to the organization.