Earth was the arena of an interplanetary war and became uninhabitable. The planet was quarantined, and all life was evacuated. All? Not all. A forgotten group of men barricaded in subterranean bunkers. Sickened by the aftermath of the war, a new kind of mankind was bred: the Bunkermenschen. Hundreds of years later, a troup transport of the KPB (Konföderierter Plantenbund, confederate alliance of planets) is on course near planet Earth and encounters technical problems. The ship has to go down on the devastated surface. Not knowing how to deal with each other, the encounter of the two parties ends in a terrible armed conflict. Who will prevail? The technologically highly advanced KPB, or the hard-bitten, steeled Bunkermenschen?