Barents Sea, August 12th, 2000. During a Russian naval exercise, and after suffering a serious accident, the K-141 Kursk submarine sinks with 118 crew members on board. While the few sailors who are still alive barely manage to survive, their families push for accurate information and a British officer struggles to obtain from the Russian government a permit to attempt a rescue before it is late. But general incompetence are against all their efforts.

The ITN-produced documentary promises to “go beyond” news coverage and bring viewers up to date, while examining the wider context about the voyage, its passengers and the fascination with the Titanic shipwreck. The film will also talk to experts and look at the rise of extreme tourism.

In 1968 the Soviet ballistic missile submarine K-129 sank in the Central North Pacific. American intelligence located it within weeks of its demise. The CIA crafted a secret program to raise the submarine in 1974. Now after much secrecy, this story can be told, by the men who made it happen and with never-before-seen footage of the actual salvage attempt, and new evidence of the project's successes and failures.

For nearly seventy years the fate of the lost Nazi submarine U-745 remained a mystery. After a decade of painstaking research and exploration, a Finnish diving team has finally solved the riddle.

14 September 1943: The legendary submarine Y1 “Katsonis” was sunk north of the island of Skiathos by the German submarine chaser UJ 2101. Through the book of XO Elias Tsoukalas who escaped capture and had to swim for nine hours to reach shore, secret documents, and crew members’ diaries, the documentary unfolds the human stories woven around the submarine. Seventy-five years later, with the support of the Hellenic Navy, we search for the submarine sunk at 253 metres depth and film the wreck for the very first time.

Documentary about the Swedish submarine Ulven which was sunk by a mine in Swedish waters in 1943 killing all 33 crew members.