Abigail had always thought she was normal, human. But when her brother, Jake, was shot and killed by attempting to climb the wall—the one that separates the enclosed city from the outside—she herself decides to see whats beyond their home. The truths she discovers about her home and herself surprise her. What she does not realize, is that the city's army needs her and will go to great lengths to find her and use her against her own kind and the creatures beyond the wall. Abigail is brought into a whirlwind of love, hate, truths, and lies, that can only end in a war.