A U.S. military satellite has crashed. That news is bad enough. But the truth is far worse. On board is a top secret biological experiment. An experiment gone wrong. Very wrong.

A new form of death is loose on Earth. And the one man who knows the most about it is the man no one wants to listen to. Not the U.S. brass trying to sweep it under the carpet. Not the Russians who seek to make it their weapon. Dr. Thomas Stevenson has created the biochemical horror that holds all life hostage-and now, somehow, as the hideous toll mounts, he must stop it....