Three months into the apocalypse, Qin Yun was brutally betrayed by his ex-girlfriend Cai Xiaoxia and her accomplices, meeting a tragic death among a horde of corpses. Reborn overnight, he returns 12 hours before the outbreak of the apocalypse. Burdened by a deep blood debt, Qin Yun mortgages his property to cash out millions, frantically stockpiling supplies and fortifying his safe house. Facing his ex-girlfriend and her brother demanding an exorbitant bride price, he no longer compromises. As the countdown ticks away and the zombie crisis approaches step by step, Qin Yun vows to hold onto his chance of survival, settle old scores with all the betrayers, and survive desperately in the doomsday world.