The Three-Body Problem (Remembrance of Earth's Past, 1)

Set Against The Backdrop Of China's Cultural Revolution, A Secret Military Project's Signal Is Received By An Alien Civilization On The Brink Of Destruction, Which Plans To Invade Earth; Meanwhile, On Earth, Different Camps Start Forming, Planning To Either Welcome The Superior Beings And Help Them Take Over A World Seen As Corrupt, Or To Fight Against The Invasion.