When the Apocalypse arrived, Celeste Sullivan protected her family, only to die with regret. Reborn, she returns to ten days before the Apocalypse. She stockpiles supplies, builds a safe base, and awakens her shadow-guarding Power. She saves Leo Locke, the Elite Soldier. She and Leo Locke join hands. Together, they protect their home, guard survivors, build a stable apocalyptic base, and she becomes a respected city leader.