Years after defeating Lü Bu and other rival warlords to gain supremacy in northern China, Warlord Cao Cao forced Emperor Xian to grant him the title of a vassal king, “King of Wei”. Cao Cao then had the Bronze Sparrow Platform constructed as a display of power, as rumors spread that he would replace the Emperor. Meanwhile, a pair of young lovers, who have undergone five years of training as assassins in a prisoner-of-war camp, are preparing to accomplish a secret mission.