Passengers on a European train have been exposed to a deadly disease, and nobody will let them off the train.

Citizens of a small town are infected by a biological weapon that causes its victims to become violently insane. As uninfected citizens struggle to survive, the military readies its own response.

A retired New York cop on vacation in America's West is drawn into a sheriff's investigation of a mysterious series of cattle killings.

A US government germ warfare lab has had an accident. The first theory is that one of the germs has been released and killed several scientists. The big fear is that a more virulent strain, named The Satan Bug because all life can be killed off by it should it escape, may have been stolen.

Chris Carrington looses his father to hereditary kidney disease. He is painfully aware he may die from it as well. While dealing with the agony of his loss, Chris is unexpectedly contacted by a mysterious Russian immigrant who tells him his father did not die from natural causes. That his father was an unwitting victim of human experiments in the development of biological weapons. Pursuing the truth behind this strange revelation, Chris learns of Dr. Gurevich, the scientist who created these viruses. He meets Gurevich's beautiful daughter Anna, whose innocence, charm and intelligence ultimately become his greatest obstacle. Unable to contact his Russian informant, unable to decipher Russian documents, unwilling to use Gurevich's daughter as a pawn, Chris struggles to fight symptoms of his own disease, caught between the ticking clock of his own illness and the consuming desire for truth.