Legend has it that in the deepest part of the Amazon rainforest, in the "Foggy Valley" where humans have never set foot, there is a lost ancient city called "Tears of the Sun" hidden. It is said that the city not only contains ancient energy that can change the world, but also seals a shocking secret about the origin and end of life. Over the centuries, countless explorers have tried to find it, but they have never returned as if they were swallowed by the rainforest.
When a mysterious stone slab engraved with strange coordinates appears, Ella Costa, a genius but rebellious ancient linguist, and Rex Thorne, a weather-beaten survival expert who only lives to redeem the past, are bound by fate to jointly lead an expedition team with different purposes into this green hell.
Not only do they have to face bloodthirsty primitive tribes, weird natural traps, and unknown deadly creatures, but they also have to be wary of the suspicion and betrayal that quietly breed within the team. As they gradually get closer to the truth, they discover that "Tears of the Sun" is not a silent ruin, but a "living" ruin with its own laws and guards. What they discover will go far beyond their desire for gold and glory, challenging their understanding of history, science, and even humanity's own place. This is a race against nature, humanity, and time. They must make a choice: let the secret be buried underground forever, or expose it to the public at the risk of destruction?
