This story is about humanity facing the threat of extinction after an outbreak of an unknown virus. Once-prosperous cities have become ruins, and the survivors unite to stay alive. Amid the devastation of the zombie plague, the main characters face tests of family bonds, human nature, and the old social order as they flee and meet new companions. As they struggle with losing themselves, they continue searching for who they are, while leading their fellow refugees through a zombie-infested society, fighting desperately to survive and pressing on toward a tomorrow that seems to offer no hope.