The team explores how winter affects the coast, as Nick Crane visits Cornwall to reflect on the Penlee lifeboat disaster of December 1981, in which 16 people died.
However, he also discovers that wild seas bring surprising benefits for farmers.

Neil Oliver goes behind the scenes of the Viking Fire Festival on Shetland, and on St Kilda off the west coast of Scotland,
Andy Torbet finds out why a feral flock of sheep battles to the death during the cold months.

Mark Horton investigates the devastating impact of storms on small communities, and wildlife cameraman Richard Taylor-Jones captures a portrait of the creatures that make the Kent town of Margate their home for winter.