The latest national and international news, exploring the day's events from a global perspective.

Julia Bradbury follows the trail of Britain's lost rail empire. In Scotland, she walks the Speyside Way, the route that once served a world-famous whisky industry. Show more

Neil Oliver investigates Britain's deadliest rail disaster at Quintinshill near Gretna Green. Two men were jailed, but was there a cover-up to protect others from being blamed? Show more

Dan Cruickshank returns to his childhood home of Warsaw to explore the memories of the city, which the Nazis razed to the ground in World War Two, and those of its people. Show more

Classic horror from the Hammer Studio. Vampire hunter Van Helsing comes to Transylvania to investigate the fate of his friend, apparently the victim of the blood-sucking creature. Show more

Gabriel Weston investigates the forensic advances that have elevated the murder weapon from its role of mere evidence to that of key witness. Show more

Marine biologist Monty Halls travels to Cornwall to live and work as a fisherman. In rough seas, he heads out to work on the biggest crabber on the coast, the Harvester. Show more

Jim Al-Khalili concludes by looking at how, if we could understand the secret of electrical superconductivity, we could once again transform the world. Show more

Dan Cruickshank returns to his childhood home of Warsaw to explore the memories of the city, which the Nazis razed to the ground in World War Two, and those of its people. Show more