The United States has fallen. Millions have died, and millions more have fled to the refugee-swamped central states. A month after the infection arrived the east is now a dead zone, populated only by the infected and those dumb or crazy enough to stay behind and fight. Tom Freeman is among the last to remain, and he's quickly learning that there are worse things to fear than the infected. Dark forces work to use the tragedy for their own ends, and the greatest danger may not be from those hungry to feed... but those hungry for power. Trust no one... Watch your back... Don't fall asleep......

Bangkok, March 2018. The world looked on as millions of innocent lives were snuffed out in a matter of hours. Millions of men, women and children slaughtered without mercy, killed by a violent mob that attacked without reason, motive or warning. Tom Freeman saw the aftermath. He reported on the tragedy and looked into the eyes of the sole survivor, and what he saw looking back sent him running home to the United States. Back to safety. Back to a place where the world makes sense, and the putrid stink of the dead doesn't haunt his nightmares. He didn't run quickly enough. They're coming....

There is no safe zone. The United States has been infected from coast to coast. Countless millions are dead, and yet more are infected. Every American is dead. Some of them just haven't noticed yet.
But wait. Just when all hope seems lost an old ally arrives, and he brings with him the faintest glimpse of hope. Hope that the human race may yet win through. Hope that some may survive. Hope that this great nation may still have one last fight left in it.
Don't stop.
Don't give up.
Don't breathe...
It's in the air.
VACCINE is the third and final...