Paul Murton visits Gigha and Jura, two islands of the Inner Hebrides that are only a few miles apart but could not be more different. He begins at the Achamore Gardens on Gigha, which were created in the 1930s by the malted-drink millionaire James Horlick. He loved Gigha's mild climate so much that he bought the island and made it his home. Today Gigha is owned by the community, and many of its residents are incomers attracted by the opportunity to begin a new island life on this small and fertile place. Where Gigha is small, lush and verdant, Jura is rugged and awe-inspiring. Despite being one of Scotland's largest islands, just 200 people live there - alongside more than 5,000 deer

Discover two of the greatest failed invasions in the history of naval warfare - the defeats of the Spanish Armada and the Allied fleet of the First World War

Referencing the lost fleet of the First World War, investigations reveal the greatest scuttle and act of defiance in wartime history. Testimonies and CGI illuminate the events and subsequent salvage

How investigations into three historical collisions exposed the volatile risks at sea and how they have shaped regulations and technological advancements

The team discovers two ships laden with deadly cargos - ticking time bombs set to explode, but no one knows when

During the First World War, two warships sank in controversial circumstances north of Scotland. Discover the mysterious stories behind these two wrecks