The mission to destroy a domestic terrorist cell in possession of a nuclear bomb sounds like the opportunity he is looking for, until he realizes that his targets are not terrorists, and that what they have is something infinitely more dangerous than a bomb. On the run with Dr. Grace Llewellyn and the device she calls Prometheus, Markus finds himself pitted against the full might of US intelligence and military forces as they mount the biggest manhunt ever conducted on American soil. He quickly learns that Prometheus represents a technological advancement so profound that it can alter the course of history. But there is another such device already in play, and he, Grace and Prometheus are all that stand between it and the end of human civilization as we know it.