Dive WWII: Our Secret History - 1x02 - Episode 2- Followmy.tv

In this episode, Jules explores how an airbase in Derry provided the vital air cover the Allies needed to win the Battle of the Atlantic. And at sea, the divers uncover the German U-boat wrecks that reveal how the battle finally swung in the Allies favour. They also find the remains of submarines sunk as part of the German surrender in Derry, and dive to the wreck of Hitler's deadliest U-boat