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 1000... 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.