Exploring Britain's maritime stories. Nicholas Crane tells the tale of the Great Storm of 1703, which saw ships blown from British shores to Norway, while Ian McMillan discusses the fate of hospital ship Rohilla, which ran aground off Whitby, North Yorkshire, in 1914. Tessa Dunlop reveals the dangers of working in the dockyards where naval warships were built in the 19th century, and Dick Strawbridge is in Tiree in the Inner Hebrides, where he explains how the timings of the D-Day landings were determined by RAF weather forecasters. Andy Torbet searches for the elusive storm petrel on Alderney, in the Channel Islands.