When Dr. Lou Welcome fills in for his boss at a national conference in Atlanta he brings along his friend, Cap Duncan. An accident turns tragic when Cap injures his leg. Surgeons save the leg, but the open would becomes a breeding ground for a deadly microbial invader. Hundereds of miles away, a teenaged girl is fighting against the same bacteria. the germ is resistant to any known antibiotic and government scientist tasked with finding a cure has been kidnapped. Turning to the Centers for Disease Control for help. Lou uncovers a link to a shadowy group known as One Hundred Neighbors that has infiltrated society and is using health institutions as hostages.