In 1974, the United States and the Soviet Union secretly jointly launched a lunar landing mission and discovered the remains of an alien spacecraft and an alien body 300,000 years ago on the far side of the moon. The pictographic symbols they carried were actually the same as those of the Yin Ruins oracle bones. In 1979, Chinese scholar Zhou Peiyuan and his assistant Liu Wenhua joined the tripartite research, but an unexpected soul exchange occurred. Liu Wenhua's consciousness entered an alien body and became a "research object." As the coordinates of the underground base at Kailash emerged, China, the United States and the Soviet Union began to compete over extraterrestrial secrets. Liu Wenhua struggled to move forward among interstellar mysteries, national interests and family ties, uncovering the secret connection between human civilization and alien visitors across time and space.
