As an alien fleet emerges from the dark side of the moon, astronauts Rex Huntley and Rory Scott are thrust into a battle for humanity's survival. With their crew gone and Earth's defenses crippled, they race to warn Houston of an impending invasion. Meanwhile, Sahara, waiting for the safe return of her husband, faces her own trials on Earth. Nemesis Vector blends the emotional depth of human connection with the pulse-pounding action of a space epic.