National Geographic

This film shows the ship’s construction and launch. It tells the story of how she was sewn together without a single screw, nail or bolt and the mighty struggle to launch her.

In 1986 Steve Berry led an expedition to climb the highest unclimbed peak in the world. It also happens to be the highest peak in Bhutan. Two years of laborious preparations had led up to the attempt to get the climbers on the mountain in the limited weather window between the end of the monsoons and the onset of winter. Their team almost reached the summit but they were driven off by horrendous storms. Due to the climbing restrictions in Bhutan, the mountain remains today as the highest unclimbed peak.

A 3,000-year-old cold case could be the earliest known victim of a shark attack. The skeleton, found in Japan, is covered in unusually deep cut marks. It looks like the victim of a frenzied samurai sword attack, but could his wounds have been caused by a shark? If so, which species of shark is the prime suspect? Shark experts Alyssa White, Gavin Naylor, Kirin Sekito and Masato Nakatsukasa investigate.

Follows shark experts investigating unusually high great white activity around a seal and sea lion colony off Australia's Greenly Island.