In 2007, prominent scientists across the world are committing suicides. Wang Miao, a leading figure in nanotechnology research, is recruited by captain Shi Qiang to help infiltrate an organization called The Frontiers of Science.

During a game of billiards, Ding Yi explains to Wang Miao, the meaning of Yang Dong's suicide note. Later, he finds a series of mysterious numbers in all of the photographs he took.

Wang Miao starts seeing a series of numbers in his own vision, which he determines to be a countdown. He visits Shen Yufei of Frontiers of Science for answers.

Wang Miao suspends the experiment; Shen Yu Fei shares an ominous message.

Wang Miao arrives at the radio astronomy observation base station and is received by Sha Rui Shan.

Shi Qiang learns of Ye Wen Jie, the only other scientist that Shen Yu Fei contacted while Yang Dong was still alive.

Wang Miao accesses the Three-Body game and enters during the so-called “Chaotic Era.”

After leaving the game, Wang Miao finds its extreme realism and design unimaginable.

Chang Wei Si interrogates Hu Xiaoxi whose deliberate provocation does not deter him.

Xu Bing Bing tries to trace Yang Dong's activities and frame of mind before her death. Wang went to Ye in order to know more about her history.

Ye Wen Jie is investigated for reading a prohibited book and the letter she transcribed for Bai Mu Lin, who denies any involvement.

The more Shi Qiang learns about Ye Wen Jie, the more suspicious he gets; Wang Miao re-enters the game.

Wang goes to Ye to learn more about Red Coast; Mu Xing believes there is a powerful organization behind Pan Han.

Yang tried his best to keep Ye away from the core of Red Coast. Lei engaged Ye personally for unknown reasons.

Wang Miao plays a game with his daughter which inspires him to re-enter the Three-Body game.

A gravitational pull of the a tri-solar syzygy ends Civilization No.184; Wang Miao is invited to a players’ meet-up by the administrator of the game.

Shi Qiang and Wang Miao embark on a mission to find Shen Yufei and Ye Wenjie.

Ye Wenjie learns that true purpose of Red Coast, searching for extraterrestrial civilizations.

Wang Miao and Shi Qiang share their information but Shi Qiang doubts it's all a coincidence. Ye Wenjie waits for ETO leader Evans at the Red Coast Base.

Wei Cheng tells the story of his obsession with trying to solve the three-body problem.

At an offline meet-up of players of the Three-Body game, Pan Han reveals the reality of the Three-Body world.

Ye Wenjie pays her homage to Shen Yufei and learns about the Adventists.

Clues link Chen Xue to ETO and the K1303 train killing. Wang Miao learns of the ETO gathering, and the Battle Command Center plans an arrest operation.

Ye Wenjie, who conducted research at the Red Coast Base, comes up with a bold exploration plan: use the sun as an amplifier to transmit signals into the universe.

On Radar Peak, Ye Wenjie replies to the Trisolarans.

Lei Zhicheng wants to monopolize the message that Ye Wenjie received from Trisolarans.

Shi Qiang is still in the hospital; Wang Miao joins in on the interrogation of Ye Wen Jie.

Ye Wenjie shocks everyone with the revelation two protons were launched into the solar system.

The Battle Command Center finds a 28-GB hard drive, which contains a Three-Body game client, through which Wang Miao and Shi Qiang enter the game again.

The Trisolaran announces that their fleet is heading towards Earth