In the winter of 1940, Kong Jie's independent regiment was massacred at night by the Japanese Yamamoto special agent team in Yangcun. It suffered heavy casualties and was angrily called "dough" by the boss. However, Kong Jie, who was dismissed from his post and transferred, did not sink. He reviewed the game in silence, glimpsed the truth about the enemy's elite from a special shell, and deduced the strategy to defeat the enemy on the map sandbox. After several hibernations, he returned to the battlefield and took charge of the new second regiment. Kong Jie used his body as bait and made careful arrangements. The unruly Li Yunlong is his iron fist, the scheming Ding Wei is his barrier, and even the aloof Chu Yunfei has become a cornerstone. A large net of revenge and annihilation of enemies was quietly spread in northwest Shanxi. When Yamamoto's special agents showed their fangs again, they fell into a carefully crafted cage. Under heavy artillery fire, Kong Jie calmly commanded, and the defeated troops in the past became an iron army. In the subsequent magnificent anti-mopping campaign, he joined hands with his comrades, and with his extraordinary resilience and grand layout, he allowed the Japanese invaders to see what the true "sword" spirit is - not only the bravery of encountering a narrow road, but also the indomitable tenacity and the wisdom to turn things around. This is the epic of a dull knife. It doesn't have a dazzling edge, but it can crush all invading enemies through silent tempering. See how Kong Jie fought his way from the bottom of the valley to complete the true transformation of a general in the flames of war, creating his own immortal legend.