When a deadly virus and a masterful act of bioterrorism converge, Dr. Mallory Hayes, a CDC physician struggling with claustrophobia and doubts about her boyfriend, races against time to uncover the origins of an immunity-ravaging virus spreading through a FEMA camp. With the clock ticking and powers in charge reluctant to take the threat seriously, Mallory must find a cure and prevent a modern plague from devastating America in this shockingly realistic and high-stakes medical thriller.