Governors are the ultimate in robot evolution. Composed of six separate robots, each can single-handedly run an entire human city. Now they have begun to fail mysteriously. The last unit, MC Governor, realizes its own destruction is approaching. The Third Law of Robotics comes into effect: a robot must protect its own existence.

To save itself, MC Governor breaks itself down into six component robots and launches its parts into the remote past. But there's something MC Governor doesn't know -- time travel causes a change in its molecular structure. If its pieces are not returned to their own time, they will explode in a nuclear inferno, destroying the fragile web of human history.

Only an experimental robot named Hunter and a hastily assembled team of human experts have a chance to find the MC Governor robots before they change the past -- and the future. Their first target is hiding somewhere in the age of dinosaurs. A robot determined to survive. A robot willing to be branded... predator.