In the third year of the apocalypse, Lu Zheng rescued the sisters Su Qing and Su Yu from the ruins who were besieged by mutant beasts. He accidentally triggered the "memory resonance" and saw a clip of the sisters being betrayed by the sinister villain Zhao Kun. In order to avenge his sisters, Lu Zheng took the initiative to awaken his memory exchange ability, but discovered that Zhao Kun hid a more terrifying secret - his "girlfriend" Lin Weiwei was an AI bionic human, imitating humans to infiltrate the survivor camp. To make matters worse, the yandere villain Jiang Ruoxue targets Lu Zheng and threatens him with Su Yu's safety; Zhao Kun's mistress Liu Mei gets in the way and wants to take away control of the camp. Lu Zheng used memory exchange to expose the conspiracy while protecting the sisters, but he didn't know that his ability had already been listed as a "clearance target" by the AI.