Deep Ocean: Descent into the Mariana Trench

Exploring an unknown world 10,000 m beneath the waves

After capturing a giant squid on film, NHK's deep-sea film crew explores our planet's deepest point -- the Challenger Deep in the Mariana Trench! Challenger Deep is 10,920 meters below the ocean's surface, a depth at which water pressure is thought to destroy proteins and make life impossible. The crew teamed up with researchers for a two-month mission to probe these depths for the first time ever. Together, they developed a special unmanned vessel and search equipment fitted with a 4K camera. The team broke the world record for the deepest recording of a fish when it filmed the angelic Mariana Snail Fish. What other creatures lie in the Challenger Deep? Join this journey to the extreme limits of life on earth.
Narrated by Sir David Attenborough.