In the future world, human society will be controlled by four power bodies. The three islands ruled the east, Bauhaus ruled Europe, Iberio ruled Africa, and Capitol ruled America. At this time, the earth's energy is almost exhausted, and diseases and disasters are rampant. In order to compete for limited resources, the four powers have been fighting one after another. In 2707, a bloody and brutal war was going on between Bauhaus and Capitol, where violent explosions destroyed an ancient seal, and soldiers on both sides then faced a new enemy-cruel mutants. It turned out that their gunfire inadvertently reactivated the mysterious machine from outer space at the end of the Ice Age, which could transform humans into cruel, bloody, dehumanized mutants that spread like a virus. When the earth was in danger, the rulers abandoned it and fled alone. The survivors have to find the ancient Brotherhood and what they call the chronicle, and then find a way to completely eliminate the mutants.