In the autumn of 1948, three years after the end of World War II, the soldiers of the Shangshan guerrilla were ordered to find out the location of the enemy's poison gas storage in the 808 valley and respond to the army's special attack team. On the way, the guerrillas were ambushed by the enemy. After fierce fighting, the special attack team led by Li Hao, the staff officer of the Huaihai Headquarters, and the guerrillas led by Feng Juan broke through safely. After a fierce battle, the special attack team and the guerrillas cooperated to blow up the gas depot.—Weizhen Xu