At the end of World War One, the Allies seized the German fleet and held it at Scapa Flow, in Orkney, until the terms of the Treaty of Versailles were announced. At least, that was the plan. The German navy covertly scuttled their own boats under the noses of their captors, rendering the fleet useless, until one firm set out on a massive salvage operation to recover usable material from the boats. Ian Murray Taylor's grandfather was at the top of the operation, and he talks to Dan about the story of Scapa Flow. Producer: Peter Curry