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Expedition X
S01 E04 / MYSTERY IN MAMMOTH CAVE
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EP 01
MOTHMAN PHENOMENON
EP 02
CAMBODIA'S JUNGLE MONSTER
EP 03
TERROR ON DOLL ISLAND
EP 04
MYSTERY IN MAMMOTH CAVE
EP 05
MT ADAMS UFO ENCOUNTER
EP 06
THE AMAZONS CURSED RUINS
EP 07
LAKE OF THE DEAD
MYSTERY IN MAMMOTH CAVEPhil Torres and Jessica Chobot investigate a strange phenomenon that's been haunting Mammoth Cave for generations.
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