Shots of a man and a young woman getting charts from a map cabinet in Ottawa. CU of the charts as they are lifted out of the cabinet. Various other shots of the same operation from different angles. MCSs of a man working. Cut to a chart, a magnifier being used; the chart is of the Fortress of Louisbourg, an 18th-century French fortress located on Cape Breton Island, Nova Scotia. Cut to MCU of the young woman. TILT DOWN on an ancient document and shots of another woman reading it. CUs of some details of the document on an easel. Front view of the young woman at work on the document.