The entire world is abuzz with news and speculation about Earth's newest heroes, the Terran Defense Corps, after they saved a rural Midwest high school from an apparent terrorist attack. But who are they? Where do they come from? What are their true intentions? There's only one question on the TDC's minds, however, and that is... where is the mastermind of the attack? Where is Temujin? Humbled by his recent defeat but not broken, Temujin labors in secret to rebuild his forces so that he may strike back against his enemies and deal the finishing blow. Desperate to regain the upper hand, the Horde abducts a brilliant young woman who holds the key to unlocking the full deadly potential of Temujin's war machines.