In Badong Mountain, Zhanyu County, Indonesia, there has been a legend that prehistoric humans built a five-story pyramid and a golden ark 27,000 years ago. At that time this was not called Indonesia, it was just part of the Sunda continent.
In 2016, N University geology professor Lu Mingyuan mysteriously disappeared while inspecting the Badong Mountain Pyramid; in 2026, his son Lu Xun, who is also a geological researcher, traveled thousands of miles to Indonesia to search for his father. Along the way, he embarks on a fantasy adventure with Lin En, a special investigator for the Asia-Pacific region of UNESCO, Bayan, a Sunda Javanese hunter, and Chen Jincai, an unreliable man.
They not only have to search for Lu Mingyuan's traces, but also face the encirclement and suppression of the petrochemical tycoon Victor and the Deep Blue Group behind him, and also solve the mystery of the pyramid and the Golden Ark.
In order to find the truth, they chased him from the Java rainforest to the capital Jakarta, then to the underwater pyramid of Yonaguni Island, and even once appeared in the mysterious Venice of the Pacific - South Madur.
The moment the truth was revealed, everyone was shocked - the Golden Ark was not only related to the fate of Java and Southeast Asia, but also related to the life and death of all mankind and even the entire earth's civilization.