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S1:E14 Elan Valley
Runtime: 30 min
Paul Heiney and the team explore the dams and reservoirs of the Elan Valley in Wales, test site for Barnes Wallis's bouncing bomb ahead of the Dam Buster raids in World War Two. Kate McIntyre meets a sheep farmer who helped rescue Britain's red kite population and there is a visit to a model village created to replace homes in the flooded valley
