With the sudden loss of the sentient AI system, YAR, former atheist Dr. Michael Berg struggles with the ongoing reconstruction of his faith. Now, several years after YAR's departure, a new AI system emerges to take its place-NERO. But when NERO displays disturbing personality traits, its creator, Dr. Laney Foster, calls on Dr. Berg for advice.
Chaos ensues. What first appears to be a high-tech glitch unique to the modern age erupts into a conflict between good and evil that has raged since the dawn of time.