Creatures of the night… When a series of gruesome murders are uncovered around the world, the trail leads back to the SGC—and far beyond... Recalled to Stargate Command, Dr. Elizabeth Weir, Colonel John Sheppard, and Dr. Rodney McKay are shown shocking video footage—a Wraith attack, taking place on Earth. While McKay, Teyla, and Ronon investigate the disturbing possibility that humans may harbor Wraith DNA, Colonel Sheppard is teamed with SG-1’s Dr. Daniel Jackson. Together, they follow the murder­ers's trail from Colorado Springs to the war-torn streets of Iraq, and there, uncover a terrifying truth...