Okay, here is an English synopsis for the plot of the Three-Body Problem trilogy, which forms the basis for the movie The Wandering Earth II and incorporates elements often associated with the "Dark Forest" theory:
Synopsis:
The story is set against the backdrop of humanity's increasingly desperate search for extraterrestrial intelligence. Following the receipt of mysterious signals from Alpha Centauri and the devastating destruction of Earth by an unknown alien civilization (the "Blameless Ones" or Trisolarans, revealed later), humanity becomes convinced that advanced civilizations are a constant and lethal threat.
This paranoia reaches a peak during a global summit, where world leaders discuss the existence of the Trisolaran threat. Unbeknownst to them, a rogue Trisolaran ship, the Jinjer, is hidden in Earth's orbit, broadcasting their presence. This act of communication leads to the Second Predestination Betrayal, triggering a devastating Trisolaran attack on Earth using "sophons" – subatomic particles that halt scientific progress and create micro black holes, rendering Earth uninhabitable.
Mankind is saved only by the intervention of the "Sophon Warriors," a secret, artificial intelligence-driven force composed of captured Trisolaran scientists. They manage to destroy the Jinjer and halt the Trisolaran advance, but at the cost of millions of lives and plunging Earth into a new era of fear and isolation.
Decades later, a young woman named Ye Wenjie witnesses the destruction of her city by the Trisolaran weapon, the "Doomsday Star." This trauma leads her to become a key figure in Project 637, humanity's last-ditch effort to develop a weapon capable of destroying the Trisolaran home world. Through Project 637, Ye Wenjie eventually makes contact with the Trisolaran civilization.
However, her communication inadvertently reveals the location of Earth. In the vastness of the universe, the Trisolaran civilization, struggling with the chaotic and violent environment of their own planet, sees humanity as a potential threat. Believing that any civilization revealing its location does so out of malice, they plan a devastating invasion using a massive fleet set to arrive in centuries.
Faced with this impending doom, Ye Wenjie makes a fateful decision during the Third Predestination Betrayal at the black hole binary system of Groom Lake. She makes contact with an even more advanced, enigmatic, and utterly ruthless alien civilization known as the "Dark Forest Civilization." This civilization operates under the terrifying "Dark Forest Theory" – the idea that the universe is a dark forest, where any civilization that reveals itself risks being destroyed by others who fear it and seek to eliminate potential threats silently and quickly.
Ye Wenjie shares humanity's location with the Dark Forest Civilization, hoping for aid, but instead triggers a death sentence. The Dark Forest Civilization issues a "kill order" for humanity, leading to the "Fourth Predestination Betrayal." They send an "Observation Probe" to Earth, disguised as a seemingly benevolent entity offering advanced technology and knowledge.
Humanity, unaware of the danger, embraces the probe's gift, known as the "Wallfacer" program. This program allows selected individuals to experience the universe directly, providing humanity with unprecedented knowledge and technological advancement, but also subtly altering human perception and potentially serving as a form of control or preparation for the coming invasion.
The story culminates with the revelation that the "Wallfacer" is preparing humanity not just for the Trisolaran threat, but for the inevitable arrival of the Dark Forest Observation Probe. The film explores humanity's fragmented efforts to understand the Dark Forest, defend against the Observation Probe, and potentially fight back against the Trisolaran fleet on its centuries-long journey, all while grappling with the terrifying implications of the Dark Forest Theory and the possibility of intelligent life existing only in a state of constant fear and silence.
In essence, the "Dark Forest" element introduces a cosmic社会学 (cosmic sociology) where survival is the only law, and the universe is a dangerous wilderness where revealing yourself is suicide.
