In the season of the Song administration amid the rule of the Renzong Emperor, a couple of miles north of the Great Wall, a soldier of fortune gathering initially comprising of twenty men hunting down dark powder are sought after by Khitan highwaymen, who have as of now murdered a portion of the men. After getting away they look for shelter in a give in however are then assaulted by an obscure creature, leaving just William and Tovar alive, with the previous having sliced off the beast's hand. The two choose to carry the arm with them. The following day, they discover the Great Wall and are taken prisoner by Chinese officers of an undercover military organization called the Nameless Order, drove by General Shao and Strategist Wang.

The Nameless Order is a Chinese military request dispatched by the Imperial Court of the Song Dynasty as an uncommon division of the Imperial Army imagined for the sole reason for repulsing a crowd of outsider beasts who rise at regular intervals. The bosses are stunned after observing the beast's disjoined hand, as the Order trusted the intrusion was still weeks away. All of a sudden, a rush of creatures assault the Great Wall, and the legions are activated. The Nameless Order is isolated into five unique units: the scuffle expert Bear Troop, the aerobatic authority Crane Troop, the toxophilite pro Eagle Troop, the attack motor master Tiger Troop, and the stallion mounted Deer Troop. Misfortunes are maintained on both sides before the beasts' ruler reviews her automatons.

Amid the fight, William and Tovar are liberated by Peng Yong, an incompetent trooper from the Bear Troop and William, thusly, spares him from the assaulting creatures. William and Tovar's fight aptitudes gain the regard of General Shao and Commander Lin, pioneer of the Crane Troop. Afterward, William and Tovar meet Sir Ballard, an European who, similar to them, had wandered east a quarter century back looking for dark powder. Like them, Ballard was additionally taken prisoner and now has been filling in as an English and Latin instructor. The three remote hired soldiers talk about arrangements to take dark powder from the storeroom and escape while the fighters are involved by fight. Afterward, Strategist Wang meets William and clarifies the circumstance: The creatures that William battled were Taoties, which are beasts beginning from a green meteor that crash-landed onto Gouwu Mountain two thousand years prior.

The Chinese trust the Taotie were sent from the divine beings to rebuff the Emperor for mishandling his power over the Middle Kingdom and the general population. They assault northern China once at regular intervals, an attack for which the Order has been preparing for their whole lives. Amid the night, two Taoties achieve the highest point of the Wall and noiselessly murder a few guards. Shao and Lin lead the Deer fighters to examine, yet are trapped. The Taoties are killed however Shao, injured past recuperation, surrenders to his wounds and passes on, leaving Lin to take summon of the Nameless Order. Around this time, an emissary from the capital touches base with an antiquated parchment which proposes that the creatures are appeased by magnets.