Following a distress call from the state police, Dr. Edward Neil and his team from the Centers for Disease Control enter the small town of Hartworth, Montana. Immediately they encounter a man in a pickup truck holding a quarantine post. His body decimated by a disease like they have never seen. The entire town, population a little under a thousand ... dead. Men, women and children. The unknown germ hit so fast, the town did not stand a chance of survival. But it didn't hit so fast that they couldn't shut down and protect others from what they had. It is a race against the clock. Not only must Edward Neil discover what wiped out the small town in just a couple days, he needs to determine if it crossed boundaries. The germ is strong, contagious, deadly and fast. If it escaped Hartworth, humanity could very well face an extinction level event.