Wang Tiemei, a single mother, loses her job and moves, befriending neighbor Xiaoye who appears cheerful but is depressed. Their bond grows as Tiemei navigates relationships with her ex-husband causing trouble.
Lei Ming, a former lecturer, and Sang Xia, a psychology teacher, runs a special class to help under-performing students. They guide students like Li Ran, who plans to drop out due to his grandmother’s illness, to overcome challenges and aim for university. Their combined efforts help students realize their potential and prepare for the next phase of their lives.
Nanotechnology researcher Wang Miao is taken to the Joint Operations Center by police officer Shi Qiang, who's investigating the mysterious suicide wave among scientists worldwide, and recruited to sneak into an organization called the Frontiers of Science to help the investigation. When Wang Miao is contacted by the leader of the organization, Shen Yufei, she introduces him to a sophisticated VR video game called Three-Body, but soon he discovers that it's more than just a game.