A U.S. double agent in WWII Germany infiltrates Nazi councils while evading Allied intelligence (publicly, he was a foreign correspondent who had renounced his American citizenship). Three episodes of the series were stitched together into the 1966 theatrical movie 'I Deal in Danger.'
Allied Intelligence must convince the Germans that March is loyal to them: information has leaked out about a new Nazi super-weapon, and March is the only agent who has access to the invention.
