The third part of a fictional trilogy, describing the role and operations of a naval Special Forces unit, based on Tresco in the Isles of Scilly.It describes the part played in the Second World War, by this ultra-secret unit, from D-Day until the end of the war in Europe. So secret was the real-life flotilla, that news of it was not released, under the Official Secrets Act, until 1995. As the war moves to its climax, the Germans become ever more desperate to regain lost ground.