The iron-blooded army would rather be a broken blade than bend its spine! Mess cook Lu Zheng awakens red eyes in a night raid, fighting with his life on the line. Starting from confronting an enemy centurion, he forms a sworn brotherhood with Zhao Tietou, Shouhou, Aniu, and other brothers. Iron-blooded tough guys entrust their lives to one another, and the phrase "My people can only die behind me" props up the entire iron-blooded army. The imperial court withholds military pay, the imperial inspector usurps power, his beloved mentor Li Zhenshan dies for his country, and Zhao Tietou sacrifices himself to shield his brothers. Lu Zheng's hair turns white overnight, transforming into the "White-Haired Asura." He leads the army south, wins against the odds, besieges the capital, opens his red eyes fully, defeats Han Long, and Cao Qin falls. With the realm newly settled, he does not claim the title of emperor; he only supports the young emperor and returns peace to the common people.