地震一直被視為無法預測的天災，但科學家從未放棄破解地震先兆。本節目將前往印度卡奇沙漠，見證研究員夫婦從天然氣尋找線索；深入日本高知縣，看科學家如何在南海海槽鑽探海底斷層，預測地震危機；走進中國西安，追踪科學家怎樣從監測重力異常變化，作出更精準預測。這群「地震偵探」，正利用尖端科技與人工智能，試圖與時間賽跑，實現地震預測，以挽救生命。

This special documentary follows the earthquake detectives searching for the ultimate clue: a sign that an earthquake is coming. Should they crack the code, it could save thousands of lives every year.

Long considered the holy grail of seismology, earthquakes are among the few natural disasters still impossible to predict, but advancements in technology - and now artificial intelligence - could bring us closer than ever before.

In India, a trailblazing husband-and-wife team embark on an adventure across the Kachchh Desert in search of a natural gas that may provide a clue. While, in Japan, scientists are drilling thousands of kilometres beneath the seafloor to understand more about the Nankai Trough, an earthquake fault line that threatens the future of Japanese society.

In Xi’an, China, scientists believe they are on the brink of a breakthrough. By monitoring abnormal changes in the Earth’s gravity, they’re convinced they can predict when the next big earthquake will strike.