An underwater adventure in search of living fossils. The island of New Guinea in the Pacific Ocean sits on the equator, where immediately next to a richly-colored coral reef, a sharp underwater cliff drops down to 1,000 meters. A long-awaited exploration down the little known depths of this tropical sea is finally about to start. NHK has teamed up with eminent marine biologist Mark Erdmann, discoverer of the coelacanth in Indonesia. The spherical transparent submarine, which successfully captured the world’s first moving images of a giant squid in its natural habitat, is used as the team encounters true living fossil species one after another. During their last dive, in the darkest depths of caves in the deep-sea cliff, the crew encounters a huge, unknown exotic fish… Narrated by Sir David Attenborough. For this shoot, the submarine was equipped with a cutting-edge 4K camera, for pristine images. Join the film crew on an exciting adventure into a deep sea never before seen by humans, captured on six cameras shooting multi-angles, creating a breath-taking underwater documentary.