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.

Master diver Frank McGuire has explored the South Pacific's Esa-ala Caves for months. But when his exit is cut off in a flash flood, Frank's team—including 17-year-old son Josh and financier Carl Hurley are forced to radically alter plans. With dwindling supplies, the crew must navigate an underwater labyrinth to make it out.

Described as being a film about determination, danger and the ocean’s greatest depths, James Cameron's "Deepsea Challenge 3D" tells the story of Cameron’s journey to fulfill his boyhood dream of becoming an explorer. The movie offers a unique insight into Cameron's world as he makes that dream reality – and makes history – by becoming the first person to travel solo to the deepest point on the planet.

Master diver Frank McGuire has explored the South Pacific's Esa-ala Caves for months. But when his exit is cut off in a flash flood, Frank's team—including 17-year-old son Josh and financier Carl Hurley are forced to radically alter plans. With dwindling supplies, the crew must navigate an underwater labyrinth to make it out.

Described as being a film about determination, danger and the ocean’s greatest depths, James Cameron's "Deepsea Challenge 3D" tells the story of Cameron’s journey to fulfill his boyhood dream of becoming an explorer. The movie offers a unique insight into Cameron's world as he makes that dream reality – and makes history – by becoming the first person to travel solo to the deepest point on the planet.

With a team of the world's foremost historic and marine experts as well as friend Bill Paxton, James Cameron embarks on an unscripted adventure back to the wreck of the Titanic where nearly 1,500 souls lost their lives almost a century ago.

In 1988, Andrew Wight and his team went on to attempt a record cave dive in Pannikin Plains Cave on the Nullarbor Plain, where flash floods turned the expedition into a life-or-death adventure. This was captured on film by his support team, and eventually published as Nullarbor Dreaming. This short film launched his career as an international film-maker and culminated in him becoming James Cameron's right-hand man on many 3D and other film projects. Sanctum was inspired by his Nullarbor experience

In 1988, Andrew Wight and his team went on to attempt a record cave dive in Pannikin Plains Cave on the Nullarbor Plain, where flash floods turned the expedition into a life-or-death adventure. This was captured on film by his support team, and eventually published as Nullarbor Dreaming. This short film launched his career as an international film-maker and culminated in him becoming James Cameron's right-hand man on many 3D and other film projects. Sanctum was inspired by his Nullarbor experience

Sitting inside his mini-sub, two and a half miles under the Atlantic Ocean, James Cameron is playing the ultimate video game. Using piloting techniques perfected in earlier dives to other parts of the ship, he steers a remote operated vehicle down the stairs toward the Turkish Baths - a place he has dreamed of since he first saw the wreck 10 years ago. Less than one hundred feet away, beyond a series of barriers he can't see, is one of the last great, unseen places inside Titanic...