This is the way the world ends. On a warm summer night at Yankee Stadium, a terrifying plot to bring humanity to the brink of extinction is set into motion. And as the deadly Medusa virus sweeps the globe unchecked, three survivors - an obstetrician dealing with the death of an expectant mother, a football star past his prime, and a soldier harboring a terrible secret about her own future - struggle to save what they hold most dear in a world crumbling around them. Part II - Void (Available Now) Part III - Evergreen (Available Now) Part IV - Citadel (Available Now)