Dan Dailey, in the title role, carries most of the picture alone as a smalltown lad who becomes a hero when he is first to enlist after Pearl Harbor. Immediately after his basic training, though, he is shipped back to a newly-opened air base in the same hometown and the population turns against him when he is held there for over two years as a gunnery instructor.Dailey is finally tagged as a last-minute replacement for an ailing B-17 gunner. Credit for the laugh-fest can be spread among Dailey and the rest of the cast, the excellent script [based on a story by Sy Gomberg] and all connected with the production. But the major share goes to John Ford. Ford turns to comedy for the first time and demonstrates that a laugh-film can also be his forte.