It is a flying sword, if you will. And it is intelligent. It can reproduce itself, and is beginning to evolve into new forms that it's creators had not imagined. Now, all human life forms are not safe. But then, the NEB sends a soldier through the wastes to request a negotiation.
Screamers go munch munch, but the message gets through.
A spaceship crashes. Hendricksson takes Gung Ho into the wastes and there they find a little boy, David, whom the Screamers have left alone. By now you will probably be bored out of your minds. I meant it. It really does.