After Lu Ran detonated the nuclear reactor, a cloud of radiation enveloped the city, and the survivors split into three factions: Iron Throat wanted to use AI to eliminate emotional creatures, Qiniang took in the children to form the "Mother of Ashes", and Mute Eagle hunted the city lord's minions. Su Yuan discovered that Lu Ran's daughter's brain tissue had been preserved by Bai Yan, and tried to awaken her consciousness as a carrier of new life, but Lu Ran was shaken internally. Bai Yan activates the 'Purification Protocol', forcing the survivors to kill each other and releasing a programmable radiation virus. Lu Ran and Su Yuan were forced to join forces again and used the reactor wreckage as weapons to counterattack the city's main center, but their communications were cut off by Iron Throat. Qiniang sacrificed herself to detonate the underground granary to buy time for Lu Ran. Mute Eagle used her last prosthetic body to shoot through Bai Yan's neural interface. Before she died, she whispered: 'What you blew up was not a shelter, but hope. ' When Lu Ran faced the fragments of his daughter's consciousness, he had to choose: restart civilization, or return everything to zero. Before the radiation dissipated, a new heartbeat came from the underground - it was not human, but another kind of life spawned by nuclear energy.
