In the farthest reaches of space, a creature terrified us. Acid blood. Armored skin. Razor-sharp teeth. No mercy. In the depths of a rain forest, another creature hunted us. Perfect camouflage. Fearsome weapons. Brutal methods. No conscience. In 2004, these monsters clashed on Earth in the greatest battle the universe has ever known. But far in the future, long after a technological catastrophe that started a second Dark Age, all memory of these two species has been forgotten. And when Mankind again reaches for the stars, we will discover that, truly, those who cannot remember the past are condemned to repeat it. Once again, Man is caught in the middle of a deadly struggle.