The Confederate Ironclad (1912)

During the Civil War Elinor a pretty Northern girl comes south to visit her aunt Little does anyone suspect she works as a spy Lieutenant Yancey whos nearly engaged to the fetching and resourceful Rose is gallant enough to show the Yankee guest around including a walk down a hidden creek where a gunboat is built and awaits powder Elinor sends this intelligence North and the Bluecoats attack