Gareth E Rees on his book 'Sunken Lands' and the traumatic impact of rising waters now and in the deep past. Cataclysm both human and natural and folklore as resistance. Rees talks about his inquiries which begin at Pett Level and take him to international sites of flood and disaster including Louisiana and Naples. Soundtrack features music from Rees to complement the narrative, also called 'Sunken Lands'.