Comic Cavalcade (1942-) #1 (NOOK Comics with Zoom View)

Diana and Steve head out by car to the New England coast at General Darnell's request to keep an eye out for spies and saboteurs. The disappearance of a young boy named Tommy then leads Diana to try and locate him, and she discovers a group of fifth columnists who are connected to the Nazis that are to come ashore as invaders.