National Geographic Channel +1 Sunday

Teleshopping.

Teleshopping.

Teleshopping.

Teleshopping.

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Train crews in the Rockies must haul their 15,000-ton grain train through ice-encrusted tunnels to make their delivery on time

A spike in the temperature threatens Rocky Mountain's shipments. The team struggles to shore up the track after mudslides and washouts devastate the railway line

Marine geologist Robert Ballard explores a well-preserved Byzantine wreck in the Black Sea, using a cutting-edge robot to excavate the site and collect samples and artefacts

Cutting-edge visuals drain the water around Alcatraz to reveal why the infamous prison was so inescapable. Plus, what the bay's fault lines could mean for San Francisco's future

This episode explores Hitler's reluctance to use chemical weapons, and how research into pesticide research created the poison gas used to kill millions in the Holocaust

A Canadian regiment strikes a Panzer unit accused of horrific war crimes. Meanwhile, German troops cling to the critical hub of Caen

In the aftermath of Hitler's downfall, a combined force of American and surrendered German soldiers must protect French prisoners of war from SS forces

An expose of the medications Adolf Hitler was taking, how much he took and how often, and whether drugs played a role in the Fuhrer's behaviour and actions

An investigation into the fate of Nasa's space shuttle Columbia, which disintegrated on re-entry into Earth's atmosphere, killing all seven astronauts on board

A brand new aircraft crashes into a mangrove swamp in Cameroon with no survivors, and investigators discover a lethal cascade of issues that contributed to the disaster

When a two-billion-dollar Stealth Bomber crashes in Guam, it is up to the US Air Force to investigate the most expensive aviation accident of all time

In Denmark, workers uncover a mysterious wood-lined tunnel. In Virginia, excavations reveal the foundation of an 18th-century building and a cellar filled with colonial artifacts

Archaeologists investigate the eruption of the volcanic island of Santorini, one of the most devastating natural disasters in human history

Experts reveal what they have learned about the middle ages from a collection of treasure found by a metal detector enthusiast in 2009

Experts use cutting-edge technology to discover the underwater secrets of Ancient Egypt, Loch Ness and the California Gold Rush

Archaeologists uncover ancient medical secrets

On final approach to Islamabad in heavy fog, Airblue Flight 202 slams into the Himalayan foothills, killing all onboard

Tim Shaw and Fuzz Townshend tackle their first motorbike, a 1973 Triumph Bonneville motorbike belonging to ex-postmaster Ian, for an emotional reveal in the heart of Wales

Tim Shaw and Fuzz Townshend tackle a Golf GTI Mk1 owned by one of Birmingham's biggest VW fans. Unlike previous builds, this isn't a typical restoration

The manufacture of the Audi R8, a road car that has been modelled on the company's Le Mans 24 Hours-winning machines

A behind-the-scenes look at furniture manufacturer Ikea, discovering what it takes to fill more than 300 stores worldwide with its range of products

Teleshopping.

Teleshopping.