When the sun suddenly tore off its gentle veil, super-intensity deadly radiation swept across the earth like a tsunami, and the earth's surface was reduced to scorched earth within seventy-two hours. The surviving humans hid in the underground bunker code-named "The Hive", only to find that hell had just changed into a different cage - the food reserves were decreasing at a speed visible to the naked eye, the scratching sound of mutant creatures' claws came from the ventilation ducts, and the resource numbers on the monitoring screen were as desperate as the graffiti on the walls.
Lin Xia, a former environmental engineer, mastered the core data of the bunker's energy system, but when counting supplies, he discovered that the top management had concealed the truth that half of the reserves were contaminated; veteran Chen Ye led a group of orphans to guard the lower level of the bunker, using homemade weapons to resist the "bone-eroding insects" that emerged from the cracks. However, during a patrol, he encountered someone secretly transferring medicines. When the ventilation system was on the verge of collapse, bone-eating insects began to attack the isolation door collectively, and the bunker council was plotting to use the "sacrifice" of half of the people in exchange for the survival of a few people. The energy curve beating on Lin Xia's screen and Chen Ye's hand clenching the handle of the knife became the only remaining light in this dark underground world. They must tear their way out of the internal and external traps, even at the cost of letting the buried humanity resurface with the ashes on the surface.
