The apocalypse is about to arrive. Lin Chen is reborn with the painful memories of his past life, awakening the devouring system. He hoards supplies, builds a sturdy shelter, and meets the scientific talent Anna. The two join hands to fight against malicious villains and giant mutated beasts, and crack the secret of the emerald. Having gone through multiple catastrophes of tsunamis and volcanic eruptions, he adheres to the bottom line of humanity, rallies survivors, and tries his best in a desperate situation to find hope for human survival.