Dr. Mackenzie Hagan, a disease detective and epidemiologist at the CDC-Atlanta and Nathan Hunter, an off-the-books operative for the mysterious Project Artemis within the Department of Defense, who have crossed the globe in search of clues, have realized that this infectious disease is like no other, and with the jihadists implementing the plague as a tool of bioterror, there is not just one Patient Zero, but thousands. Can a cure be found? Will the politicians who are responsible for protecting our nation from all forms of enemies warn the public? Is it too late? Just a few of the many questions posed in this second book of the Pandemic series.