Modern special forces Zhao Lie crossed over to become a captain in the northern border. As soon as he took over the defense, he was ambushed by the Golden Tent on the Grassland, and three thousand remaining soldiers were trapped to death. He lit the smoke and set up a suspicious formation, led the dead soldiers to attack the enemy camp at night, beheaded the commander Hu Yanbao, and used his head to drive back ten thousand horses, in exchange for the right to guard Yingchou Pass, the most dangerous of the three passes. However, the crisis at the border is far from over: the Central Government sent a smiling supervisor, and his prisoner was the exiled prince Murong Chong, while the prairie general He Lianyue's cavalry had quietly surrounded them - this pass that was bought with blood was just a living sacrifice for a larger chess game.