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.

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.

On the last day of normality in Mackinaw, Illinois, Oliver McCallister thinks his worst problem is figuring out how to come clean to his wife about the secret he’s been keeping from her. Zoe McCallister thinks her worst problem is squeezing in an errand at the courthouse before another long day of nursing classes—and worrying about whatever Oliver is hiding from her.

Like most college students, all Callie Norton has worried about for weeks was passing this semester’s finals. After a night out celebrating, she and her friends wake up, sick with way more than the hangover of the century. All too soon, Callie realizes that this is not just a common cold she’s suffering from—and when she wakes up from a coma in a quarantine tent as the sole survivor, lack of food and water aren’t her only problems.

Clint Redshaw walks into a port facility meeting expecting an ordinary day arguing about the budget. When the shaking starts, he keeps calm. But as the tremors stretch on and on, the ground rips apart, the dock disintegrates, and chunks of land fall into the Strait. When the quake finally ends, there's only one thing on his mind: his daughter. Mika's singing songs and laughing with a gaggle of other sixteen-year-olds as they climb into the Pacific Northwest mountains for a scout weekend. One minute, it's sunshine and good vibes, and the next, it's screaming and chaos.