Hell Below - Season 2 - Eps 5: North Sea Showdown aka Sub vs. Sub
In the icy waters off of Norway in 1945, a U-boat embarks on a mission to bring top-secret German technology to Japan, unaware that a Royal Navy V-class submarine has just been ordered to patrol the area. Neither commander manning their vessel realizes that they are about to face-off in the world's first underwater submarine dogfight. Witness the historic battle between HMS Venturer and U-864.
About Hell Below

Title: Hell Below
First Air Date: 2016-04-05
Last Air Date: 2024-08-16
Status: Returning Series
Rating: 6.5/10 (from 4 votes)
Language: EN
Seasons: 4
Total Episodes: 24
Network: National Geographic Smithsonian Channel
Genres: Documentary
Production Companies: Parallax Film Productions
Synopsis
Hell Below is an event-based series charting the stealth game of sub sea warfare, tracking the dramatic narrative from contact to attack of the greatest submarine patrols of World War II. From the rise of the Wolfpack to the drive for victory in the Pacific, we profile the strategic masterminds and the rapid evolution of technology and tactics, as the threat of undersea warfare brings every sailor's worst nightmare to life. Expert analysis and stock footage are woven with narrative driven re-enactments filmed on authentic Second World War era submarines to place the characters at the heart of the action.