Nat Geo HD

Your one-stop-shop for all things cruise; bringing you the hottest destinations, ground-breaking ships and the latest deals to ensure your next cruise is your greatest one.

After loading up 112 cars, veteran engineer Rob and rookie conductor Keri must guide their two-kilometer train into the heart of the Rocky Mountains. (S1, ep 3) 7+.

Engineer Jordy and conductor James are hauling a high-priority shipment to Alberta, but in the Rockies, severe rockslides threaten to wash out the tracks. (S1, ep 4) 7+.

Follow some of the world's most extraordinary railway journeys from above and on the ground, taking an adventure of a lifetime. 7+.

Where building on land isn't possible, engineers build on water. But as traffic and weather take their toll, every repair becomes a race against time. (S1, ep 6) 7+.

Investigators uncover a fatal flaw as they scrutinise the wreckage of a helicopter crash that killed all but one passenger. (S19, ep 7) 7+.

Three different systems could have prevented the crash of a commuter plane on a mountain top in Papua - but none of them did. Experts investigate why. (S19, ep 8) 7+.

On 19 February 1985, a China Airlines flight stalled in mid-air. The pilots managed to pull the plane out of its dive avoiding disaster. Why did it happen? 7+.

After clearing the Manx2 Flight 7100 for landing, controllers at Ireland's Cork Airport are shocked when it crashes into the runway. (S13, ep 9) 7+.

Investigators struggle to access the site where a Santa Barbara Airlines Flight crashed in 2008. Can they gather enough evidence to prove what went wrong? 7+.

Investigators uncover an alarming list of issues that caused a brand-new Kenya Airways plane's fatal crash into a mangrove swamp. (S19, ep 10) 7+.

When a two-billion-dollar Stealth Bomber crashes in Guam, the US Air Force investigate the most expensive aviation accident of all time. (S21, ep 3) 7+.

Secret School and Concealed Castle Cemetary: Hidden tunnels, lost schools, warrior graves and ancient cemeteries reveal remarkable stories buried beneath the modern world. (S1, ep 10) 7+.

Archaeologists investigate Santorini's eruption, searching for clues to date the disaster and uncover its devastating aftermath. (S1, ep 3) 7+.

They disappeared without a trace or a soul to tell their tale. Shipwrecks so mysterious, their fate became the stuff of legends, until now. (S4, ep 3) 7+.

Experts investigate inexplicable sightings of mystery creatures in the world's lakes and lochs. 7+.

Rivers of Mercury, Ethics of Anatomy, the Black Death: From ancient China to plague-ravaged Europe, history's turning points reshape life and death. (S1, ep 2) 18+.