The morning that the world ends, Katie is getting ready for court and housewife Jenni is taking care of her family. Less than two hours later, they are fleeing for their lives from a zombie horde. Thrown together by circumstance, Jenni and Katie become a powerful zombie-killing partnership, mowing down zombies as they rescue Jenni's stepson, Jason, from an infected campground.

Rose Winter has enough problems. With a marriage going down the tubes and a dreaded anniversary party on the horizon, the last thing she needs is the zombie apocalypse. She wanted to get drunk and sing karaoke, not murder her undead neighbors. It’s clear the party’s over, however, now Rose has more problems - a missing husband, an overbearing houseguest, and keeping her family alive.

Half of the earth's population has been wiped out. Impossible to predict or stop, the Gamma Ray Burst tore through the Earth like a bullet, its radiation wave killing hundreds of millions, and the after effects ensuring the deaths of billions more.

Cassie Forrest isn't surprised to learn that the day she’s decided to get her life together is also the day the world ends. After all, she’s been on a self-imposed losing streak since her survivalist parents died: she’s stopped painting, broken off her engagement to Adrian and dated a real jerk. Rectifying her mistakes has to wait, however, because Cassie and her friends have just enough time to escape Brooklyn for her parents’ cabin before Bornavirus LX turns them into zombies, too.

It’s an ordinary Monday. Until everything changes forever. At 2:44 PM, a mysterious crack appears in the sky. Anyone unfortunate enough to look up is immediately struck blind. What’s worse, their mind is wiped clean, replaced with a vicious urge to kill anyone within reach. Mark is at work when it happens. Fighting not to fall asleep, the boring department meeting suddenly turns into a bloodbath when people are drawn to the windows to look up at the sky.