On the legendary Easter Island in the South Pacific, a team of National Geographic explorers and scientists undertakes a groundbreaking expedition: to attempt a first-ever mapping of the vast cave system beneath this enigmatic isle.
While doing so they make astonishing new discoveries that will shed light on one of the greatest mysteries in human history: the fall of Easter Island. What caused this civilisation to crumble - and what might this knowledge mean for us today?
Explorers and scientists undertake the groundbreaking expedition to first-ever mapping of the vast cave system beneath this enigmatic isle.