Submarine Alert
1943 film by Frank McDonald
Submarine Alert is a 1943 American war film directed by Frank McDonald, produced by Pine-Thomas Productions and released by Paramount Pictures. The film stars Richard Arlen, Wendy Barrie, Nils Asther, Roger Pryor, Marc Lawrence and Ralph Sanford.
Plot
During World War II, with shipping being sunk by submarines and with an American scientist working on radio technology killed by Nazi spies, FBI agent G. B. Fleming (Roger Pryor) comes up with a plan to catch the Nazis. He believes that radio signals are alerting the Germans about ship movements. His plan is to fire all the local radio specialists, who likely will seek any employment, including working with the enemy. Tailing the jobless radio men will help the FBI find the Nazis.
Engineer Lewis J. "Lew" Deerhold (Richard Arlen) thinks he lost his job because he is a Canadian citizen. Lew looks after his niece Tina (Patsy Nash), a war orphan requiring a brain operation. Needing money, he applies for work at a radio repair shop, where he meets Ann Patterson (Wendy Barrie), the victim of a purse snatching. Lew recovers her purse and asks Ann out on a date.
“Submarine Alert” enters the record as 1943 film by Frank McDonald. Crown Archives preserves that source wording while asking what Submarine, Alert and film can confirm, complicate or overturn.
Why this record matters
“Submarine Alert” is worth following because a concise public description often conceals a longer documentary argument. Here, Submarine, Alert and film provides the most credible route into that argument.
Reception evidence should be dated and situated: later canonical status may differ sharply from the work’s initial circulation. The source revision retrieved here is dated Mar 21, 2026. The linked authority identifier is Q7631574. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1943.
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This entry incorporates text from “Submarine Alert” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.