After his wrist was cut off, Huo Jin was demoted to a lowly soldier, but in the bloody mud he clung to the red flame army flag taken away by the enemy - it was the military soul that his father protected with his life. In order to regain the military flag, he used his left hand to recast his combat skills and formed a secret alliance with Qin Ye, the son of a surrendered general whose life experience is a mystery, Tie Thro, a mute slave who silently delivers messages, and Su Tang, a female doctor with a vicious conspiracy. When the commander-in-chief of the Southern Xinjiang Army pointed his butcher knife at the border refugees, and when the dragon vein map hidden under the red flame was revealed, he realized that the broken wrist was not the end, but the fuse for the blood flag to be rekindled.
