S1.E1 ∙ Assassins of The DeepThu, Feb 23, 2023No instrument of war defines the 20th century like the submarine. Covert and deadly, these silent assassins of the deep, rewrote the rules of the game. Featuring exclusive access to three separate wreck sites.Rate
S1.E2 ∙ Danger AheadThu, Mar 2, 2023Armed with the latest undersea technology and personal testimony, boarding two doomed ships to discover what set them on the path to catastrophe.Rate
S1.E3 ∙ Last Days of The BattleshipThu, Mar 9, 2023Survivors' stories and world-leading shipwreck investigators uncover how even the most powerful warships had their weaknesses and paid a fatal price.Rate
S1.E4 ∙ Nuclear WrecksThu, Mar 16, 2023The remains of warships from the remote Pacific to the Atlantic, reveal new insights into how the atom bomb changed the world forever.Rate
S1.E5 ∙ Savage RevengeThu, Mar 23, 2023How the Americans launched a massive bombardment of the Japanese fleet - and how the German liner Wilhelm Gustloff was torpedoed by a Russian sub.Rate
S1.E6 ∙ Failed InvasionsThu, Mar 30, 2023Two of the greatest failed invasions in the history of naval warfare; How the Spanish Armada was defeated and why the Allied fleet was crushed in WW1.Rate
S1.E7 ∙ The Lost Fleet of WW1Thu, Apr 6, 2023Investigations reveal the greatest scuttle and act of defiance in wartime history; testimonies and CGI illuminate the events and subsequent salvage.Rate
S1.E8 ∙ Collisions at SeaThu, Apr 13, 2023Investigations into three historical collisions expose the volatile risks at sea and how they have shaped regulations and technological advancements.Rate
S1.E9 ∙ Toxic WrecksThu, Apr 20, 2023Two decaying Second World War wrecks, the SS Skytteren and SS Richard Montgomery, are investigated as their dormant cargoes now pose a deadly threat.Rate
S1.E10 ∙ Scotland's Sea SecretsThu, Apr 27, 2023Two research teams are granted special permission to investigate what happened to WW1 warships HMS Hampshire and HMS Vanguard in their final moments.Rate