When a RAF plane is downed, the combined forces of the air and sea arms spring into action to resscue him, which mostly seems to consist of men in offices speaking into telephones.
The Crown Unit documentaries are among the best in the business, but this, the first movie directed by Jack Lee, is a dull little affair. True, other movies informed us that pluck, muddling through, and learning how to make tea properly for three thousand people at a crack would get Great Britain through to the end, but this one is so low key as to be depressive.