After seven days without food, the lone army in the north was on the verge of disintegration. Yun Jin led the remaining troops to guard Hanling, and their food was exhausted. At the moment of life and death, he and his deputy Lin Zhaoye decided to raid the enemy's granary alone - the heavily guarded "Iron Ridge Tun" known as the iron wall. Yun Jin used his body as bait to lure the enemy deep; Lin Zhaoye sneaked into the cellar with kerosene and burned the enemy's vitality with a torch. Being without food for seven days was not a defeat, but the prelude to a desperate counterattack. They are not heroes, they are wolves cornered, their fangs sharpened, just waiting to tear a way out.