. .Their first destination was Kratos. It seemed almost ideally suited for colonization. But before interplanetary settlers could begin arriving, they had to know what caused the deep ruts and throbbing domes that marred the planet's surface.The Expendables hadn't reckoned with powerful creatures capable of constructing hills bigger than the pyramids of Egypt. Colossal snake-like beings that swayed and roared. Hostile life forms that could destroy their mission--and them.