Even as combat raged across the globe in World War II, another, just as deadly campaign was being waged behind the scenes by such Allied espionage organizations as the SAS, MI6, and others. This 13-part documentary series recounts the efforts of the men and women who went behind enemy lines to dangerous missions for intelligence gathering, sabotage, and assassination. 11 hrs. total on four discs. Widescreen (Enhanced); Soundtrack: English Dolby Digital stereo; Subtitles: English (SDH).