In the Nevada desert an experiment has gone horribly wrong. A cloud of
nanoparticles?micro-robots?has escaped from the laboratory. This cloud is self-sustaining and
self-reproducing. It is intelligent and learns from experience. For all practical purposes it
is alive. It has been programmed as a predator. It is evolving swiftly becoming more deadly
with each passing hour. Every attempt to destroy it has failed. And we are the prey.