After the first wave of outbreaks and infection, the blood has not even had a chance to dry before Shaun and his friends are forced to disobey his father's wishes to stay where they could be safe at the family's cabin and away from the unknowns of their new bloody apocalyptic world.

The zombies are vicious and hungry and never satisfied. From their first trip into town, the zombie apocalypse war begins. Survival and taking care of each other is key. The search for the cure is America—and the world's—only hope. The government put out a plea for anyone that might know anything about the spread of death.

The government very quickly figures out that Karen was patient zero at the hospital outbreak. They also find out that Frank Fox is the one responsible for developing the drug, but not about the backstabbing acts his assistant Rogers had done to him.

While the government waits for help, the military sends in a team of Navy SEALs to try and speed up the process, hoping that they can find the research that they need. The soldiers find the apocalyptic world a bit more dangerous and chaotic than they had expected.

Shaun and his friends run into the SEALs and together they embark on a battle to find the cure. Shaun has his own emotional issues to deal with, as he learns that his dad was the one responsible for it all.

Contains mature themes.