Some battles are impossible to win. Others are impossible to lose. This one will change the world. Two species of vampires, Seekers and Bleeders, at war for centuries, are locked in a battle that will change mankind forever. Seekers are trying to prevent the cloning of a rare blood enzyme in certain humans that can enable vampires to walk in the sunlight. A small group of hunters join forces with the Seekers to stop the looming disaster and save the human race from its ultimate devastation.