The crack in the sky is widening, and human bonds are fraying just as fast.
Alicia begins to hear her dead mother's voice - a whisper that blames, tempts, and threatens to draw her into the dark. Fritz, consumed by the voices in his own head, becomes a danger to everyone around him. Camilla fights to protect her newborn while realizing the people she trusts may already be compromised. And Mark, captured and strapped to a table, faces the horrifying reality of government experiments that use the crack as their weapon. As loyalties crumble and nightmares take shape in both mind and flesh, the survivors must confront a chilling question: how much of the horror comes from the sky - and how much from within themselves?