The spirit of a modern young man travels back to the troubled times of 1938 and becomes Yang Zheng, commander of the Eighth Company of the new Eighth Route Army regiment! At the beginning, there were few soldiers, tattered equipment, and lack of ammunition. They were in a dangerous guerrilla zone swept by the Japanese invaders. Thanks to the building empowerment system, you can build military camps to recruit troops, and open a blacksmith shop to make weapons. He inherited Li Yunlong's fierce fighting style, relied on advanced tactics and strategies to take root in the countryside, unite the people's hearts, skillfully set up ambushes to annihilate the invading Japanese invaders, seized a large amount of armaments, cultivated the garrison, trained troops and forged swords, and as a grassroots Eighth Route Army, fought fiercely against the beacon smoke, chased the invaders and protected the people, setting off the legend of the counterattack of the powerful anti-Japanese army in the mountains and rivers of Shanxi!