Submarine Alert poster
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Submarine Alert

4.819431h 6mNRMovieActionThrillerWar

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…

DirectorFrank McDonald
WriterMaxwell Shane

Where to watch

fuboTVfuboTVMGM+ Amazon ChannelMGM+ Amazon ChannelPhiloPhiloMGM Plus Roku Premium ChannelMGM Plus Roku Premium ChannelMGM PlusMGM PlusFlixFlingFlixFlingIndieFlix Shorts Amazon ChannelIndieFlix Shorts Amazon ChannelPublic Domain MoviesPublic Domain MoviesFawesomeFawesomePlexPlexCineverseCineverseTubi TVTubi TV
Availability shown for United States · rights vary by country

Cast · Directed by Frank McDonald

RARichard Arlen
Richard Arlen
Lewis J. 'Lee' Deerhold
WBWendy Barrie
Wendy Barrie
Ann Patterson
NANils Asther
Nils Asther
Dr. Arthur Huneker
RPRoger Pryor
Roger Pryor
G.B. Fleming
ABAbner Biberman
Abner Biberman
Commander Toyo
MLMarc Lawrence
Marc Lawrence
Vincent Bela
JMJohn Miljan
John Miljan
Mr. Bambridge / Capt. Haigas
PNPatsy Nash
Patsy Nash
Tina Deerhold
RSRalph Sanford
Ralph Sanford
Agent Freddie Grayson
JC
Jack Carr
Old Mill Gate Guard
DFDwight Frye
Dwight Frye
Haldine (uncredited)

More from Richard Arlen · Lead actor

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More from Wendy Barrie · Co-star actress

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1950 · 7.2
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More from Frank McDonald · Director

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Get Smart
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Flipper
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1950 · 4.7
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1956 · 6.5
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More like this

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1943 · 6.1
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Submarine Alert — streaming FAQ

Which OTT platform streams Submarine Alert?

Submarine Alert is streaming on fuboTV, MGM+ and Philo in United States. It's not currently on Netflix.

Is Submarine Alert on Netflix?

No, Submarine Alert is not on Netflix in United States as of November 2026. It's currently on fuboTV and MGM+.

Is Submarine Alert on Amazon Prime Video?

No, Submarine Alert isn't on Amazon Prime Video in United States right now. It's on fuboTV and MGM+ instead.

Where can I watch Submarine Alert for free?

Submarine Alert is available to stream free (with ads) on Public Domain Movies and Fawesome in United States.