

Hell Below
We checked 8 streaming services in India on 04 Jun 2026 at 14:39 IST
About
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.
Seasons

Season 1

Season 2

Season 3
Season 4
WW2 Hell Under the Sea is an event-based series charting the stealth game of subsea warfare 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, meet the masterminds who bring together the strategy, technology and tactics to make every sailor’s worst nightmare to come to life.
Episodes
Season 1

America Fights Back
It's January 1943 in the Pacific and American submarine skipper Dudley Morton is just 10 days into his first patrol aboard USS Wahoo. His mission: to sink Japanese ships and disrupt supply lines. This aggressive strategy is a radically new tactic for the U.S. Navy, and Morton is just the man to carry it out. See these water wars up close and witness Morton take on entire Japanese convoys above and below the Pacific in this thrilling exploration.

Fatal Voyage
Submarine commander Dick O'Kane participated in the most successful attacks on Japanese ships during World War II, until his luck, and the last torpedo he fired, took a dramatic turn. We track O'Kane's successful career, first as a protege aboard the legendary USS Wahoo, and then as Commander of the short-lived but lethal USS Tang. Through expert testimony, we relive O'Kane's seminal triumphs, and the tragic path of his last warhead.

Destroyer Killer
The USS Harder, led by Commander Sam Dealey, sank multiple Japanese destroyers, rescued Allied operatives from capture in Borneo, and outmatched many rival ships and aircraft to return home. And that was during just one patrol. Take a deep dive aboard this submarine as we relive this incredible war patrol in the spring of 1944, and witness the events that accelerated the campaign against the Japanese and earned Dealey the Medal of Honor.

The Wolfpack
The wolfpack tactic was made famous by Admiral Karl Donitz, Hitler's mastermind of submariners. His strategy: to send teams of U-boats to bear against the convoys of ships heading from Canada to Britain, cut maritime lifelines, and starve the enemy into defeat. Take a deep dive into the North Atlantic as we go above and below sea level to relive one of the first attacks of Donitz's lethal subs in 1940, headed by leader of the pack Commander Otto Kretschmer. Then follow Britain's war strategists as they race to combat this new deadly attack.

Hitler's Revenge
Just one month after the Japanese attack on Pearl Harbor, another enemy brought World War II to American shores, not through the air but beneath the sea. This is the story of Operation Drumbeat, German Admiral Karl Donitz's campaign to send U-boats to the doorstep of the U.S. and attack Allied merchant shipping from Newfoundland to North Carolina. Through archival war footage and military expert testimony, we reveal how the Nazis managed to hammer our coast again and again and why the U.S. Navy was unable to stop them.

Atlantic Showdown
A Nazi U-boat heading back for repairs unintentionally cruises right into the middle of a large Allied convoy on March 16, 1943. It is a lucky accident that sets the stage for the largest convoy battle of World War II. Relive this momentous chapter in the war for the Atlantic, an intense game of chess pitting Admiral Karl Donitz's wolf pack against a battered British Navy. It's a three-day showdown with unparalleled violence and unexpected outcomes that will turn the tide of the war.
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Watch Hell Below Online Free — All Episodes in HD
Looking for a place to watch Hell Below online for free? You've landed on the right page. Hell Below is a popular Inglés documentary series from 2016 that you can stream right now on CineFlixo in high quality, no signup required.
About Hell Below
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. Across 4 seasons and 24 episodes, originally airing on National Geographic.
Where to Watch Hell Below Online
CineFlixo lets you stream Hell Below online free, instantly, in HD. There's nothing to install — open the page, hit play, done. Works perfectly on Jio, Airtel, Vi networks across India and on slow mobile data thanks to our adaptive video pipeline.
▶ Watch Hell Below NowWhy People Are Watching Hell Below
Hell Below flies under the radar but it deserves your attention. What makes it work is a tone and style that's hard to find elsewhere. If you enjoy Inglés storytelling that doesn't follow the same tired beats, this is the kind of show you'll end up recommending to friends.
Frequently Asked Questions about Hell Below
Where can I watch Hell Below online for free?
You can watch Hell Below online free on CineFlixo. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.
How many episodes does Hell Below have?
Hell Below has 24 episodes across 4 seasons. All episodes are available to stream right here on CineFlixo.
Is Hell Below good? What's the rating?
Hell Below holds a 6.6/10 rating based on 5 reviews — a solid pick if the genre interests you.
Is Hell Below available in Inglés?
Yes — Hell Below was originally produced in Inglés and that's the version you'll stream here on CineFlixo. English subtitles are provided when available.
When was Hell Below released?
Hell Below first aired in 2016.
Do I need an account to watch Hell Below on CineFlixo?
No. CineFlixo is free and you can watch Hell Below without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.
Similar Series You Might Like
If you enjoyed Hell Below, check out Winston Churchill: The Valiant Years, Attack on Fortress Europe: From D-Day to V.E. Day, The World at War, Inside the SS, and Libération(s), dans la joie et la douleur.
Frequently Asked Questions
Where can I watch Hell Below for free?
You can watch Hell Below online for free on CineFlixo. All 24 episodes across 4 seasons are available to stream in HD without a subscription, signup, or paywall. Just open the show page and press play.
How many seasons and episodes does Hell Below have?
Hell Below currently has 4 seasons and a total of 24 episodes. The series status is "Ended", so the episode count may grow as new seasons are released. You can browse the full episode list on CineFlixo and continue watching from where you left off.
What is Hell Below about?
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 evoluti… It belongs to the Documentary genre.
In which language is Hell Below originally available?
Hell Below was originally produced in English. On CineFlixo the show is available in its original English audio, which is the most authentic way to experience the dialogue, music, and performances. Check the player options on the watch page for available subtitle tracks.
When was Hell Below first released?
Hell Below first premiered on April 5, 2016 (2016). The series has since concluded its run.
All Seasons
Browse every season of Hell Below — 4 seasons in total
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