When the flu season struck America, it impaired the population, crippling what the collected power of the people were capable of doing to fight the outbreak. Unfortunately, it was not the same for everyone. There were three types of people. The first had no diseases, the second had the flu, and the third were busy fostering a zombie virus that was going to bring the nation to its knees.

When two teenagers stumble upon a frozen corpse deep in the woods, they make the fateful decision to bring it back to town—unaware they’ve just unleashed the apocalypse. In the morgue beneath the hospital, the dead begin to stir, attacking the living and spreading a relentless infection. The once-quiet town quickly descends into chaos as the hospital becomes a battleground, its halls soaked in blood as survivors fight to escape the growing horde.

Follow the desperate journey of a scientist who will stop at nothing to save the woman he loves from a disease that is slowly consuming her body. But his actions have unintended consequences that plunge the world into a bloody and chaotic apocalypse, where the living are outnumbered by the ravenous, superhuman zombies that roam the streets.

It all starts with a single dead person coming back to life. Within three days, the undead have taken over most of town. Despite heroic efforts and swift initiatives from the government, disaster keeps spiraling. Soon, the infection reaches the nation's borders, threatening to become a worldwide pandemic.

Those who would seek a new world order have unleashed the most devastating virus onto mankind, and even they do not know the secrets hidden in their weapon. Follow along as Harry, a CDC scientist, races to figure out what exactly the virus is and how to stop it. It will be up to him and a group of marines led by Major Sanders to stop the zombie fallout before it ravages an unsuspecting world.