Episode 4

In 1982, at a seminar in London, Ye Wenjie and Evans reunited unexpectedly.Ye Wenjie has become a professor at Tsinghua University, while Evans has inherited the family oil company.Evans firmly believes that to fight power, you must first embrace it.Under this concept, Ye Wenjie revealed to him the secret of her sending alien signals from Hong'an Base.

As time goes by, Jack's death is revealed, and Oggy suspects that it is related to the mysterious woman.The police had no clue about the case, but found that the other party seemed to intend to stop Ao Ji from working, and at the same time let Cheng Jian work for them.The police hope that Cheng Jin can cooperate with them to find out the mastermind behind the scenes.

Cheng Jian felt guilty for Jack's death, and she revealed to Oji the existence of the Trisolaran organization and the fact that alien life was about to arrive.Although Oji is surprised by this statement, he believes that if alien life does have technology that surpasses humans, then cooperation with them may bring new hope to mankind.

Evans learns that Jack failed the game test, but he is unfazed by the upcoming summit in London.He believes that “Lord” is invincible and promises to protect him.Even though the police had discovered the secrets of the summit, Evans remained confident.

At the summit, Evans told the story of Little Red Riding Hood to the Trisolarans, and was surprised to find that they didn't know how to hide their intentions or say things they didn't mean.This is because Trisolarans communicate through thoughts rather than human language.They were shocked when they realized humans could lie.

The Trisolarans began to believe that humans were unreliable and unable to cooperate with each other.Then the Lord suddenly lost contact, leaving Evans uneasy.At this time, Cheng Jin sneaked into the summit, and Clarence immediately recognized the mysterious woman's voice.What shocked Cheng Jian even more was that she discovered that the leader of this organization was actually Ye Wenjie, the mother of Vera Ye.

Ye Wenjie recounted the history of human cannibalism and how the Trisolarans came to Earth a hundred years later to teach humans how to survive and thrive.However, at this moment, the police rushed into the venue and the scene was chaotic.Clarence rescues Cheng Jian, but the mysterious woman discovers her cooperation with the police.

Afterwards, Will invited Cheng Jian to go on vacation together after Jack's funeral to relax.Unexpectedly, Cheng Jin agreed.Perhaps she realized that with the arrival of the Trisolaris, humanity had very little time left.In 1984, Evans used a ship to build Second Red Bank, which became the launch center.He explained that the Trisolarans had been in contact with Ye Wenjie and left the base before receiving another reply.At that time, the Trisolarans had decided to go to Earth.

After Ye Wenjie was arrested, her disdain for human beings became even more obvious.She firmly believes that humans cannot prevent the arrival of the Trisolarans because they simply do not understand their capabilities.