After an ancient evil is awakened by a naïve pawn, the reign of Lilith is put into motion- a horrid plot planned centuries in advance by fallen angels. With a legion of demons at her command, she plans her revenge upon one of the world's largest religious groups before thrusting herself centerstage and taking her seat upon the throne as Queen of the World.

With threats coming at them from every angle, the Monster Squad turns to an ex-member to form a new team—a team made up of the most unlikely warriors destined to hunt down and destroy the Demon Queen.However, when the time comes to remove the Queen in this grand game of chess, will they be willing to sacrifice one of their own pawns to stop her?