TV Drain the Oceans - Season 2 Episode 3 : Killer U-Boats Drain the Oceans - Season 2 Episode 3 : Killer U-Boats 7/10 by 27 users Draining the oceans reveals the story of the U-Boats as they took on the Royal Navy, sinking 12 million tons of ships and nearly winning the war. Details Casts Posters Images Title Drain the Oceans - Season 2 Episode 3 : Killer U-Boats Alternative Titles Drain the Ocean: See What Lies Beneath Our Seas, Enthüllt: Geheimnisse der Meere, Drenar los océanos, Les secrets engloutis, Lecsapolt óceán, 海底大探索, Izsušitev morja First Air Date 2018-05-28 Last Air Date 2023-04-09 Number of Episodes 55 Number of Seasons 6 Genres Documentary, Networks National Geographic, Casts Craig Sechler Plot Keywords , Self - Narrator (voice) Craig Sechler Episodes List Drain the Oceans Season 2 :Episode 1 Secrets of D-Day Secrets of D-Day 2019-06-03 Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks,... Drain the Oceans Season 2 :Episode 2 Secrets of New York City Secrets of New York City 2019-06-10 Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks,... Drain the Oceans Season 2 :Episode 3 Killer U-Boats Killer U-Boats 2019-06-17 Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks,... Drain the Oceans Season 2 :Episode 4 Buried Secrets of the Gold Rush Buried Secrets of the Gold Rush 2019-07-01 Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks,... Drain the Oceans Season 2 :Episode 5 Secrets of the Civil War Secrets of the Civil War 2019-07-22 Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks,... Drain the Oceans Season 2 :Episode 6 Lost Nukes of The Cold War Lost Nukes of The Cold War 2019-07-29 Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks,... Drain the Oceans Season 2 :Episode 7 Secrets of The Spanish Armada Secrets of The Spanish Armada 2019-08-05 Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks,... Drain the Oceans Season 2 :Episode 8 Pacific War Megawrecks Pacific War Megawrecks 2019-08-12 Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks,... Drain the Oceans Season 2 :Episode 9 Thai Cave Rescue Thai Cave Rescue 2019-09-02 Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks,... Drain the Oceans Season 2 :Episode 10 London's Secret History London's Secret History 2019-09-09 Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks,... Drain the Oceans Season 2 :Episode 11 Secrets of Loch Ness Secrets of Loch Ness 2019-09-16 Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks,... Drain the Oceans Season 2 :Episode 12 Hitler's Killer Warships Hitler's Killer Warships 2019-09-23 Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks,... Drain the Oceans Season 2 :Episode 13 Lost Giants Lost Giants 2019-09-30 Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks,... Drain the Oceans Season 2 :Episode 14 Pacific Shockwave Pacific Shockwave 2019-10-07 Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks,... Drain the Oceans Season 2 :Episode 15 Rise of The Roman Empire Rise of The Roman Empire 2019-10-14 Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks,...