Geologist Chen Mo accidentally discovered an ancient meteorite fragment containing a strange star map while surveying the Mogao Grottoes. After working with archaeologist Lin Yuwei to decipher it, they were shocked to find that the star map pointed to a modern astronomical coordinate and was associated with a secret message from Zhang Qian's deputy envoy that recorded "people descended from heaven". The clues lead them to the mysterious Kunlun Incident in 2019 and a survivor - Zhou Yan, a soldier with strange brain wave signals in his brain.
The team successfully deciphered the brain waves and revealed a prophecy pointing to the center of Lop Nur Lake. The group went deep into the Sea of Death. With the help of their guide Aiguli, and relying on the holographic tambourine inherited from her family, they witnessed the recurring scene of past expeditions being swallowed by "bronze eyeballs". They finally found key evidence in the nuclear explosion area, confirming that all anomalies originated from signals at the Gutenberg interface deep in the earth, pointing to a 36-node network covering the world.
The team arrived at the predicted location and encountered the "Sand Time Cage" where time and space were distorted. Due to continuous contact with the fragments, Chen Mo's body gradually turned into bronze and became an information receiver. He learned the horrifying truth: this network is the immune system of the earth's "Gaia consciousness", used to periodically evaluate and execute "civilization resets". As the key interface of the system, Chen Mo chose to sacrifice himself at the last moment, integrate his consciousness into the network, and become an eternal observer to delay the trial and gain a glimmer of hope for human civilization. The world has returned to peace, and its secrets are hidden deep inside. Chen Mo's consciousness has transcended time and space, and is forever wandering on the Möbius strip of civilization's survival.
