When representatives from varying agencies disagree on how to handle Dr. Nancy Jaax's discovery, she realizes there are few protocols in place for containing a deadly virus on U.S. soil; an employee at the monkey research facility falls ill.

Dr. Nancy Jaax works tirelessly to find out why the virus is behaving differently than expected in human victims; unforeseen dangers arise at the research facility; Jaax is forced to make a choice between her family and her duty to her country.