Britain's strong bonds with its Celtic cousins across the English Channel in Brittany are explored, as the programme visits brand-new territory. Neil Oliver tours the province of Finistere, battered by some of the world's wildest waters. Nick Crane joins the Onion Johnnies, who provide the stereotype of a Frenchman in stripy t-shirt, beret and on a bicycle laden with onions. Alice Roberts reveals the life-saving chemical element inside seaweed, and Mark Horton moves among the mysterious standing stones of Carnac.moreless
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