Nat Geo HD

Thord and Erlend get spooked trying to rescue a van beside a graveyard, while Bjoern gives rookie Jan Erik a lesson in becoming a proper rescuer. (S9, ep 5) 7+.

Thord tries to tow out a car that crashed into a field after a snowstorm, while a driver steers his truck off the road to avoid a collision in the north. (S9, ep 7) 7+.

Ten experts explore the 10 worst natural disasters of all time, revealing the key moments that turned a natural disaster into a human catastrophe. 7+.

A Japanese-American regiment fights through dark forests, heavy rains and entrenched Nazis to reach a lost US battalion in the Vosges Mountains.

As the Allies prepare to invade Germany, the generals jostle for the honour of being first to cross the Rhine.

Seconds after touching down in LA, a US Air Flight erupted in flames. Then, rescue workers made a horrific discovery. What went wrong? (S8, ep 4) 7+.

A huge winter storm slams into Toronto International Airport. The Airfield Inspector unit urgently tracks down a blown-over sign before it becomes a hazard. (4 of 10) 7+.

Gate crew attempts to locate a passenger travelling with a deadly weapon and there's a medical emergency on a plane just minutes from taking off. (5 of 10) 7+.

Storms across the eastern seaboard batter short-haul destinations and ground outbound flights at Toronto International. (6 of 10) 7+.

When the cockpit window of Sichuan Airlines 8633 explodes, the crew somehow battles gale-force winds and oxygen deprivation to safely land the plane. (S22, ep 6) 7+.

A mid-air explosion rocks Southwest Airlines 1380. While pilots struggle to regain control, flight attendants make a horrifying discovery. (S20, ep 5) 7+.

Gladiators capture the imagination like no other aspect of Ancient Rome. But who were they and what was the secret of their appeal? (S2, ep 2) 7+.

Historian Tim Maltin unearths compelling proof that the disaster of the supposedly 'unsinkable ship' was caused by unique atmospheric conditions and a fatal trick of the light. 7+.

The most famous shipwreck in the world lies 12,000 feet down in the waters of the Atlantic Ocean. No one has fully recorded the extent of what remains of the Titanic - until now. 7+.

Murder Island Mutiny: A headless skeleton is discovered on Australia's Beacon Island. Meanwhile in Mexico, an island full of dolls reveals a grim history. (5 of 10) 7+.