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In 1941 the Atlantic convoys slowly began to fight back, using cutting-edge technology that turned the German U-boat hunters into the hunted.
First Air Date : Aug 30, 2009
Last Air date : Sep 20, 2009
Episode : 4 Episode
Season : 1 Season
Runtime: 45:14 minutes
Studio: National Geographic Channel
Country: United Kingdom
Cast:
Crew: