Doomsday descends, gray fog shrouds the world, and humans are forced to participate in highway survival challenges. Lin Hui loses his loved ones and belongings are seized, awakens the doomsday fortress system, and obtains a continuously upgradeable RV. He rallies partners such as mechanic Su Qingqian, sniper Liu Xi, and esper Ling, seeking survival while fighting Yang Antong's Hungry Wolf Guild. As exploration deepens, he discovers that this doomsday is not a natural disaster, but an evolutionary experiment orchestrated by behind-the-scenes forces. The RV completes its ultimate upgrade, and Lin Hui settles old scores, yet hidden secrets still lie behind the events.