In Thurso, Scotland’s most northerly mainland station, the crew race to the rescue of an ocean-going rower who’s run into trouble 40 miles out to sea. In Dungeness, on the Kent coast, there are two very different shouts for the crew to deal with: an 11-year-old boy who has drifted out to sea on an inflatable dinghy and three people who are attempting to cross the English Channel at night. And in Newhaven, Sussex, a dog has fallen over 100 feet from the cliffs at Seaford.