Andrew Wight

An underwater cave diving team experiences a life-threatening crisis during an expedition to the unexplored and least accessible cave system in the world.

James Cameron teams up with NASA scientists to explore the Mid-Ocean Ridge, a submerged chain of mountains that band the Earth and are home to some of the planet's most unique life forms.

As a boy, filmmaker James Cameron dreamed of a journey to the deepest part of the ocean. This film is the dramatic fulfillment of that dream.