On May 31st, 1916, the British Royal Navy precipitated a head-to-head battle with the German Imperial Fleet, sending 151 British warships to confront the German ships. This was supposed to be Britain's second Trafalgar but ended as the bloodiest day in Royal Navy History. During 12 chaotic hours, over 6,000 Allied sailors died, and fourteen giant British warships sank to the bottom of the North Sea. A century on, historian Dan Snow, engineer Dr. Shini Somara, and Dr. Nick Hewitt of the National Museum of the Royal Navy join forces to uncover the reasons for defeat and analyze the impact it had on the results of the First World War.

On May 31st, 1916, the British Royal Navy precipitated a head-to-head battle with the German Imperial Fleet, sending 151 British warships to confront the German ships. This was supposed to be Britain's second Trafalgar but ended as the bloodiest day in Royal Navy History. During 12 chaotic hours, over 6,000 Allied sailors died, and fourteen giant British warships sank to the bottom of the North Sea. A century on, historian Dan Snow, engineer Dr. Shini Somara, and Dr. Nick Hewitt of the National Museum of the Royal Navy join forces to uncover the reasons for defeat and analyze the impact it had on the results of the First World War.