There are more people on this planet than ever before. Thanks to the miracles of technology, our civilizations are mixing unlike ever before.
But something else grows alone with us.
Viruses. Pathogens. Pandemics.
And they're evolving faster than we can keep up with. That's why a shadow section of CDC is tasked with monitoring any and all medical data in the USA to identify and cure newly evolving viruses before a plague can start.
But if a cure can't be found?
Enter the Ax Man. A lethal hitman tasked with killing patient zeroes before the outbreak can spread.
