On the seventh day of the zombie siege, virologist Lin Zhao was locked into an underground laboratory by his sister Lin Mian. He thought he was certain to die, but he activated the controllable virus she had developed in a pool of blood. When the whole city was hunting her, she used the virus to control the zombie tide and regain control of the city. Lin Mian did not hesitate to detonate a nuclear explosive device in order to "purify the world", hacker Bai Lu secretly conveyed the truth, prosthetic captain Qin Zheng went into darkness to save his daughter, and the mute girl Xiaotong's paintbrush was depicting a forbidden future where humans and viruses coexist.
