Plot: The North Berwick crew race out to try and save a windsurfer battling the seas as he and they fight the gale-force winds of Storm Dennis on the east coast of Scotland. In Carrybridge, on the banks of Lough Erne, Northern Ireland, the crew face two very different challenges: a man who’s become trapped under a digger on one of the lough’s islands and a cow that’s become stuck in the mud on the shoreline