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It was the longest campaign of World War 2 – the Battle of the Atlantic. Between 1939 to 1945 more than 100,000 lives were lost at sea and it brought Britain to the brink of defeat.At the heart of the battle against the U-boat killing machines of the Kriegsmarine – the German navy - was a small city in Northern Ireland, Londonderry, and the port of Lisahally on the River Foyle.80 years on, in a new BBC series, experts re-examine some of the pivotal moments of this critical battle. It follows a specialist team who dive into history 20 miles off the north coast of Ireland. The team rediscover the wrecks of some of the deadliest Nazi vessels who stalked the Atlantic convoys, now both resting at the bottom of the Atlantic. The series also unlocks hidden history, revealing unsung heroes and looks back at the human cost of war.

How to Watch Nazis, U-boats and the Battle for the Atlantic Legally and Safely

If you want to stream Nazis, U-boats and the Battle for the Atlantic through reputable and legal services, there are a few good options depending on where you are. Subscription platforms like HBO Max, Disney+, Netflix, Amazon Prime Video, and Apple TV+ sometimes carry Nazis, U-boats and the Battle for the Atlantic films or related DC titles—though availability depends on your country.

If you’d rather not commit to a subscription, there are ad‑supported, free (but legal) platforms such as Tubi, Pluto TV, Peacock or Crackle (where available in your region) that occasionally host superhero films.

Lastly, don’t forget about library‑linked streaming options like Kanopy or Hoopla (if your library or university is registered), and official uploads by film distributors on YouTube—these can also give you legal access to classic movies.