Wang witnesses the universe flicker for him. With encouragement from Shi and his family, he decides to fight against whoever is behind it.

Wang decides to take on the undercover job. He is presented with a game that claims to showcase the world of a highly advanced alien civilization.

The civilization is demolished in the game, leaving Wang overwhelmed by how real it feels. No one can find any information on the game developer. The General decides to put top scientists in military custody for protection.

Hu Xiaoxi, who was Pan's messenger, turns himself in. Wang and Shi go to Shen's place seeking the truth.

Wang enters the game again and witnesses a model showing a possible structure of the universe. The civilization this time is destroyed with the sun approaching rapidly.

Wang goes to Ye to learn more about Red Coast. Ye tells him about her experience of being selected as a member of the base.

Wang gains insight from gaming with Dou. As "Copernicus," he presents a radical theory, facing danger but advancing understanding.

Shi and Xu uncover Shen's husband's secretive calculations. In the Three-Body game, triple suns cause chaos, leading to civilization's destruction. Mu learns truths from Pan and decides whom to trust.

Police find Shen's death a suicide, clearing Pan. Wang attends a Three-Body game meetup where Pan reveals extraterrestrial existence. Meanwhile, global preparation against the aliens begins as mistrust spreads.

Ye mourns Shen and suspects Pan's involvement with ETO. Wang and Shi observe ETO's internal divisions. The Operations Center locates the game server, while Pan shuts it down calmly. Wang learns of Three-Body's departure.