Category X is no ordinary virus. Make no mistake, people will die. Special Agent Samantha Frey of the FBI, Dr. April Reeves, a lead Epidemiologist of the CDC, and Jake Tiller, an Ex-CAG operator, join forces as they try to figure out what is happening to the country as they see normal life spiral out of control into the unthinkable. The government's motives are not always what they seem, and neither is Category X.