剧情:
Ateamofelitecaversledby68-yearoldBillStoneattemptsamonths-longexpeditiontoofficiallymakeCheveCaveinOaxaca,Mexicotheworld’sdeepestcave.Amassivelogisticalundertakingabovegroundsupportstheleadteaminthedepthsastheynavigateanundergroundmazeoftwistingtunnelsanddeadendsinsearchofapassagethatleadstothebottomofdeepestcaveonearthbbb