Growing up on the streets taught Avery Whitlock how to care for herself, but nothing could have prepared her for the outbreak of deadly gangs, a corrupt government bent on using her blood for experiments and the depths to which desperate people would go to survive. She soon discovered that it was not the Withered Ones that she needed to fear, but those still human. The ones who knew how to put a gun to her head when they wanted something from her.
Avery will be forced to decide how far she would will go to survive just one more day.
After a close encounter with a maniac convinced the zombies can be tamed and made into a new breed of soldier, Ally implements her plan. With only a handful of people left from her group, they make the trek to the coast where they find the rusting metal hulks of what used to be grand floating cities. When they board them, they discover they are not alone. Forced to make a choice between the lives of those she cares about or death, she does the only thing she can. Ally forges a shaky alliance with a man she doesn’t trust, but it will get her one step closer to her goal. The voyage is filled with peril and danger, but they reach their destination. Midway Island. Soon after, they discover there is something deadlier than zombies. As their time ticks away, Ally's strength, determination, and will are tested.
Armed with the truth, Ally must find a way to let as many people know what is really going on. She runs into a snag when the captain betrays her, turning her over to an enemy from a past she'd rather not remember. Mark Richards, the man responsible for who she is, takes her to his compound. She ignores his attempts at talking, the anger inside bubbling over when she realizes he is the one responsible for the death of all her friends and her fiancé, Marcus, on the Betty Loo. She fights her way free, only to find herself in the middle of hell. Charlie Myers, a former friend turned enemy from her past shows up and with the help of him and his men they escape.
Ally doesn’t know who to trust, but has to play the game long enough to stay alive, figure out what's happening, and get a message out to those left.
Joseph Erdman is the head of the Israeli Firm, but abandons his post when the undead close in. He heads for America and the one person who can help him, Ally. In a remote location, several forces collide and Ally must side with former enemies and turn her back on friends in order to save what's left of the world. Joseph has a plan, but he doesn’t share all of the details.
While Ally and a team of mercenaries try to get him to the Old House so he can claim the Presidency and give people guidance in the time of crisis, another foe is heading directly for them. Ally finds the Old House and another structure where men in uniforms are taking a stand. Joseph has gone missing and her opportunities to broadcast the truth are gone. She knows nuclear weapons were part of the plan and decides to get to them first.