

However, it evades the bots and grows larger, necessitating the scientist's second line of defense: energy weapons grafted onto ants, rats, and cats. When it does, far in the future, it is microscopic instead of a few centimeters in diameter as when it usually jumps, but the scientist has prepared tiny robots to destroy the grey goo while it is still small. The scientist by this point has figured out that the grey goo has only one jump left, this time to their future, and they must be prepared for it, so he and his assistant preserve their brains so they can survive until the grey goo appears. Next, it travels to Feudal Japan, where it eats rice, ninja, and buildings, but also consumes Monsterzilla, removing the world's protection from giant monsters and allowing them to ravage the present. Next, it travels to Ancient Rome, where it consumes a feast, people, then buildings and destroys the city, forcing the Romans to pull together and prevent the fall of the empire.

It then travels to Egypt, and consumes snakes, mummies, cats, people, buildings, and the pyramids. After being hit by the meteor, the grey goo travels through time again, but each time it travels through time it reverts to a small size. In the present, the scientist and the assistant experience changes in the timeline as they happen in the past. The Grey Goo starts small again in the late Cretaceous period, consuming the plants and animals of the area, before consuming a volcano and being hit by a meteor, which prevents the dinosaurs from going extinct.
