Ten years after the end of the world, Lin Feng was betrayed by his best friend Chen Dong and died tragically as a bait for a zombie wave. Reborn seven days before the "Red Mist" broke out, he awakened the Doom Lord system and unlocked 10,000 cubic meters of portable space and the stainless steel safe house blueprint. Using the advantage of foresight to seize wealth, hoard supplies around the world, and transform suburban factories into impregnable steel fortresses. Recruit retired special forces soldier Zhao Tiezhu, genius doctor Su Wan, and parkour scout Li Fei to form a core team. When the red mist descended and zombies besieged the city, he used high-voltage power grids and automatic defenses to crush the zombies, and hunted mutants to obtain core sources to upgrade his territory. Faced with the double crisis of the encirclement and suppression by Chen Dong's forces and the tide of destructive mutant beasts, Lin Feng used the system as the basis and the team as the blade to lay a dragnet to fight against the traitors. With a steel fortress, he defeated 5,000 evolved zombies and elite mutant beasts, established the "Dawn" territory on the wasteland, and vowed to use the power of a lord to control the apocalyptic order!