Wang Miao and Shi Qiang re-enter the Three-Body game through a found hard drive. Monitor No.1379 reveals receiving a warning to protect Earth but is sanctioned for betrayal, forced to live until Earth loses hope.
Nanomaterials expert sees a mysterious countdown superimposed and finds himself under military investigation. He enters the VR game developed by a secret organization and discovers the truth behind the deaths of dozens of scientists.
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.
Wang Miao re-enters the game with his daughter's inspiration and Ye Wenjie's interpretation. Shi Qiang and Xu Bingbing become more suspicious about Ye Wenjie because of her financial aid to her niece, Chen Xue.
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.
Wang witnessed the universe flicker for him. With the encouragements from Shi and his family, he decided to fight against whoever's out there manipulating all this.