David Hayman meets some of the men who sailed on HMS Hood. He travels to Scapa Flow to experience what life was like for the hundreds of people working to protect the vital North Atlantic convoys.

The story of the Robert E Lee, one of the most famous Clydebuilt blockade-running paddle steamers.

The story of CS Mackay-Bennett, a cable repair ship launched on the Clyde in 1884. She kept information flowing along a network of underwater cables that connected Britain with her empire and the world - the Victorian internet of its day.

David Hayman travels to Australia to uncover the links Cutty Sark forged with this Commonwealth country, and to reflect on her legacy.