Popeye is an honest-to-gosh sailor (ah, the ironicky!) aboard a Naval ship, first getting a hard time from his superior officer and then fighting much enemy aircraft.
That pretty much covers the plot. The usual top-notch animation is present, as are a few better-than-average gags. But this plays mostly like a war movie with a few jokes thrown in. This was obviously a sop to the cartoon’s wartime audiences, but compared to the zippiness and non-topicality of other Popeyes, this cartoon strains to make Popeye the all-American hero, and the strain shows.
(To its credit, at least it doesn’t stoop to the stereotypical demonizing of the post-Fleischer Popeye cartoon You’re a Sap, Mr. Jap.)