Rescue Helicopter 948 is sent out from Stornaway ro the uninhabitable islet of Rockall in the North Atlantic after a distress call came in from a man out raising money for charity when the weather took a turn for the worse and became a threat to his life. MCA surveyor Chris receives two complaints about a foreign-registered ship currently docked in Teesport, and his inspection reveal not only a hazardous gangway but a host of other issues that could mean detention of the vessel