Submarine Alert
“Calling All Agents! STAND BY FOR THRILLS! ADVENTURE! ACTION!”
We checked 8 streaming services in India on 04 Jun 2026 at 22:30 IST
About
Nazi spies use a stolen shortwave transmitter prototype to broadcast top secret shipping info to an offshore Japanese sub. To nab the spy ring, the Government has the West Coast's top radio engineers fired and shadowed to see if the Nazis recruit them to complete work on the prototype radio. Radio engineer Lew Deerhold, a resident alien without a job to pay for his adorable little ward Gina's life-saving operation, falls prey to the spy ring, and is swept up in a maelstrom of deceit and danger.
Cast
Richard Arlen
as Lewis J. 'Lee' Deerhold
Wendy Barrie
as Ann Patterson
Nils Asther
as Dr. Arthur Huneker
Roger Pryor
as G.B. Fleming
Abner Biberman
as Commander Toyo
Marc Lawrence
as Vincent Bela
John Miljan
as Mr. Bambridge / Capt. Haigas
Patsy Nash
as Tina Deerhold
Ralph Sanford
as Agent Freddie Grayson
Jack Carr
as Old Mill Gate Guard
Dwight Frye
as Haldine (uncredited)
Where does Submarine Alert rank today?
Submarine Alert is #10000 on the CineFlixo Daily Streaming Charts today.
- Highest: #10000
- Top 10: 0 days
- Top 100: 0 days
Watch Submarine Alert Online Free in HD
Looking for a place to watch Submarine Alert online for free? You've landed on the right page. Submarine Alert is a talked-about Inglés action, thriller, and war movie from 1943 that you can stream right now on CineFlixo in high quality, no signup required.
About Submarine Alert
“Calling All Agents! STAND BY FOR THRILLS! ADVENTURE! ACTION!”
Nazi spies use a stolen shortwave transmitter prototype to broadcast top secret shipping info to an offshore Japanese sub. To nab the spy ring, the Government has the West Coast's top radio engineers fired and shadowed to see if the Nazis recruit them to complete work on the prototype radio. Radio engineer Lew Deerhold, a resident alien without a job to pay for his adorable little ward Gina's life-saving operation, falls prey to the spy ring, and is swept up in a maelstrom of deceit and danger. Running 66 minutes.
Submarine Alert Cast and Characters
The cast features Richard Arlen (as Lewis J. 'Lee' Deerhold), Wendy Barrie (as Ann Patterson), Nils Asther (as Dr. Arthur Huneker), Roger Pryor (as G.B. Fleming), and Abner Biberman (as Commander Toyo). Their performances are a major reason Submarine Alert has built such a passionate audience.
Where to Watch Submarine Alert Online
CineFlixo lets you stream Submarine Alert 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 Submarine Alert NowWhy People Are Watching Submarine Alert
Submarine Alert flies under the radar but it deserves your attention. What makes it work is action sequences that don't feel cheap and tight pacing that earns its twists. If you enjoy Inglés storytelling that doesn't follow the same tired beats, this is the kind of film you'll end up recommending to friends.
Frequently Asked Questions about Submarine Alert
Where can I watch Submarine Alert online for free?
You can watch Submarine Alert online free on CineFlixo. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.
How long is Submarine Alert?
Submarine Alert runs for 66 minutes (about 1.1 hour).
Is Submarine Alert good? What's the rating?
Submarine Alert holds a 4.8/10 rating based on 11 reviews — a niche pick worth checking out.
Who is in the cast of Submarine Alert?
The main cast includes Richard Arlen, Wendy Barrie, Nils Asther, and Roger Pryor, plus a strong supporting ensemble.
Is Submarine Alert available in Inglés?
Yes — Submarine Alert was originally produced in Inglés and that's the version you'll stream here on CineFlixo. English subtitles are provided when available.
When was Submarine Alert released?
Submarine Alert was released in 1943.
Do I need an account to watch Submarine Alert on CineFlixo?
No. CineFlixo is free and you can watch Submarine Alert without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.
Similar Movies You Might Like
If you enjoyed Submarine Alert, check out Lemming, The Dirty Dozen, The Legend of Zorro, The Recruit, and Confidential Assignment.
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Frequently Asked Questions
Common questions about Submarine Alert
Where can I watch Submarine Alert for free?
You can watch Submarine Alert (1943) online for free on CineFlixo. Just click "Watch Free" on this page to start streaming instantly — no account, subscription, or downloads required.
What is Submarine Alert about?
Submarine Alert is a Action/Thriller English-language film. Nazi spies use a stolen shortwave transmitter prototype to broadcast top secret shipping info to an offshore Japanese sub. To nab the spy ring, the Government has the West Coast's top radio engineers fired and shadowed to see if the Nazis recruit them to complete work on the prototype radio. Radio engineer Lew Deerhold, a resident alien without a job to pay for his adorable little ward Gina's life-saving operation, falls prey to the spy ring, and is swept up in a maelstrom of deceit and danger.
When was Submarine Alert released?
Submarine Alert was released on June 28, 1943. It has a runtime of 1h 6m. The film was produced by Pine-Thomas Productions.
Who stars in Submarine Alert?
Submarine Alert stars Richard Arlen, Wendy Barrie, Nils Asther and Roger Pryor. The full cast list is available in the Cast section above.
Is Submarine Alert available in HD?
Yes, Submarine Alert is available to stream in high definition (HD) on CineFlixo. Our players automatically deliver the best quality your connection supports — no extra setup needed.