A supervolcano eruption triggers a "global steamer" effect, with temperatures soaring past 60 degrees. Lin Wei adventures to survive in an isolated island resort, only to be betrayed by her husband Zhao Feng and best friend Liu Tingting, and learns of their long-standing affair on her deathbed. When she opens her eyes once again, she has surprisingly been reborn three days before the disaster. Facing the apocalypse, she is determined to use her foresight to turn her fate around and carve out a path to survival in this desperate dead end.