In a brutal doomsday survival game, Ethan, a down-and-out bottom-dweller, is brutally bullied by the tyrant Grant, and further betrayed face-to-face by his profit-hungry girlfriend Vanessa. At the critical moment, Ethan awakens the "God-Tier Appraisal System", which can see through the authenticity of all supplies. With the help of the system, he turns waste into treasure and repeatedly pulls out legendary gear. Assisted by his resourceful ally Helen, he outwits and defeats all the major evil warlords who monopolize water sources, weapons, and energy all the way. At the final moment of the life-or-death countdown, Ethan synthesizes the ultimate key to open "Door Zero", crushes the villains' final conspiracy, and leads all the survivors to escape successfully!
