In the future world, human society is controlled by four powers. Mishima rules the East, Bauhaus rules Europe, Iberio rules Africa, and Capitol rules America. At this time, the earth's energy is almost exhausted, and diseases and disasters are rampant. In order to compete for limited resources, these four powers are constantly fighting, and one is growing while the other is declining. Time comes to 2707, when Bauhaus and Capitol are engaged in a bloody and cruel war. A violent explosion destroyed an ancient seal, and the soldiers of both sides then faced a new enemy-the cruel mutants. It turned out that their artillery fire accidentally restarted the mysterious machine from outer space at the end of the Ice Age. It can transform humans into cruel, bloody, and inhuman mutants, and spread at a very fast speed like a virus. When the earth is in danger, the rulers abandon the earth and flee alone. The survivors have to find the ancient brotherhood and the chronicles they speak of, and then find a way to completely eliminate the mutants...