Nat Geo HD

When a truck driver refuses help after sliding to a standstill, he creates chaos on the main road. Plus, a gritter falls victim to the ice. (S9, ep 6) 7+.

A look at Nazi seafaring super weapon Type 21. A speedy submarine with phenomenal firepower, it was set to outperform any U-boat that had come before. 7+.

On 3 January 2004, Flash Airlines flight 604 took off from Sharm el-Sheikh; moments later it crashed into the Red Sea. But what happened? 7+.

Commercial flying is changed forever when investigators discover what caused Continental Airlines Flight 1713 to crash during heavy snow. (S17, ep 10) 7+.

In 1985, the deadliest year in civilian aviation, a DC-9 commuter plane crashes seconds after take-off from Milwaukee. (S24, 6 of 10) 7+.

Experts investigate the cause behind the devastating storm that ravaged New York. 7+.

Investigators face a baffling mystery when Varig Flight 254 crash-lands in a remote jungle nearly 700 miles off course. (S13, ep 3) 7+.

Spring break puts new pressure on the airport infrastructure, its staff and the very planes themselves. (S1, ep 8) 7+.

A mother travelling with her children to El Paso is caught with kilos of cocaine hidden in her car, while a boat carrying 388 kilos is chased down. 7+.

Spring breakers return to Atlanta's airport with varying contraband, including $38,000 of undeclared cash inside a bag of dirty laundry. 7+.

Rich tries to make money by extracting and selling the silver from solar panels. Diego buys a casket, but are its gold engravings worth as much as he hopes? 7+.

Diego empties his bank account and pawns his motorbike when he comes across a hoard of platinum. Is it the deal of a lifetime or has he made a huge mistake? 7+.

Get the scoop on chocolate pudding ice cream and serve up a side of coconut curry, champagne, lollipops and irresistible chocolate pigs. (S4, ep 14) 7+.

Discover the tantalising story behind Tofurky, nutty snack bars, irresistible one-bite snacks, and the most famous kiddie cocktail ever. (S4, ep 15) 7+.

A frightening yearly phenomenon plagues the waters of Hawaii every October. What's behind the mysterious occurrence, dubbed "Sharktober?" 12+.

Sharks are terrorizing the waters of a popular Mexican tourist destination. Scientists work to uncover the cause of the mysterious attacks.

7+.

Inside Ferrari's top-secret factory in Maranello, Italy, molten metal is transformed into a 200mph sports car using amazing robot technology. Follow the birth of an auto legend. 7+.

The hosts are off to Manchester to pick up a 1978 Bedford HA Ice Cream Van. Owner Barbara has served ice cream to the locals for over 50 years. 7+.

Tim and Fuzz take on carpenter Mike's 1980 Ford Escort RS2000 in the aftermath of his son's road accident. (S10, ep 4) 7+.

Tim and Fuzz are off to Devon to steal away a '90s super saloon. But when the boys get back to the workshop, they realise they've got their work cut out. 7+.

Chris Barrie takes a Routemaster bus down to his local skidpan and fires up a Vulcan bomber as he investigates the greatest British machines of the 1950s. 7+.

Bjørn and Thord rescue a truck that got stuck just 200 metres from its destination. Jo tries to save a harvester, but then its impatient drivers endanger his crew. 7+.

Rookie Terje is in big trouble when he crashes Thord's truck, Eirik searches for a missing garbage truck and Bjoern rescues a forty-tonner which over-turned. 7+.

An Italian supermarket under construction drastically collapses. Amusement parks become a lot less amusing when fires break out. (S2, ep 6) 7+.

Investigators examine similarities between a crash landing at Tokyo's Narita Airport and an accident at Newark Airport more than a decade earlier. (S13, ep 5) 7+.

In 2005 a passenger jet crashed into the Mediterranean Sea. Follow the consequent criminal investigation which resulted in 9 men being charged with negligence. 7+.

Documentary telling the story and the lives of the 20,000 teenagers that pledged to give their lives to Hitler during World War II, making up the 12th SS Panzer Division. 7+.

In April 1940, German battleships infiltrate Norwegian fjords in a bid to seize key ports and secure Hitler's supply of iron ore. (S3, 1 of 6) 7+.

Documentary exploring the horror of the final year of WWII and the infamous Panzer elite division that perpetrated huge massacres on the Eastern Front. (1 of.

Documentary exploring the horror of the final year of WWII and the infamous Panzer elite division that perpetrated huge massacres on the Eastern Front. (2 of.

Hitler's megalomania led him to construct the ultimate deep-sea destroyer, the largest tank the world has ever seen and a fighter jet that inspired a revolution in aerial warfare. 7+.

Dark Waters: Will, afraid of spiders, journeys into the Ecuadorian Amazon to abseil into the womb of the Earth and harvest tarantula venom. (S1, ep 3) 7+.

When Polish President Lech Kaczynski was killed in a plane crash in 2010, investigators discovered there was more to the incident than simple pilot error. 7+.

A look at the devastating crash of Ethiopian Airlines Flight 409 in 2010. After ruling out terrorists, investigators came to a controversial conclusion. 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+.

Vanished: With wreckage lost in the Atlantic Ocean, the crash of Air France Flight 447 in 2009 launched one of the toughest disaster investigations of all time. 7+.

Discover how cool and refreshing frozen yogurt, ultra-creamy brie, hot and crispy spring rolls, and gooey Sweet Georgia Browns get to the masses. (S2, ep 3) 7+.

Discover how sweet and crispy waffles, tangy, crunchy Doritos, dreamy dark chocolate milk, and an extravagantly cheesy Indian dessert is really made. (S2, ep 4) 7+.

When a truck smashes into a barrier, Thord and Bjoern work into the small hours to save its cargo. Jo is called out of his bed to rescue a truck buried in snow. 7+.

Severe winter weather brings chaos to the mountains and Thord's running out of options. 7+.

Jo Roger and Ole Henrik struggle to rescue a trailer load of salt that threatens to pollute Norway's biggest salmon river. Any slip-up could cause an environmental disaster. 7+.

A unique documentary charts the extraordinary journey of the tornado that struck El Reno, Oklahoma, on 31 May 2013: one of the largest and fastest twisters ever recorded. 7+.

When a dam collapses, the resulting disaster can be as catastrophic as a tsunami, inundating communities and destroying everything in its path. (8 of 9) 7+.

A C-130 firebomber crashes while battling an epic Australian wildfire. And ATSB investigators must determine the cause within an active fire zone. (S24, 3 of 10) 7+.

With all the emergency agencies involved in a simulated plane crash exercise, real problems place airport operations in jeopardy. 7+.

A Labrador has his first day as a drug sniffer, the managers see if they can smuggle a fake bomb past their screening teams and Annie faces her moment of truth. (S1, ep 8) 7+.

Spring break puts new pressure on the airport infrastructure, its staff and the very planes themselves. (S1, ep 8) 7+.

Investigators come to a frightening realisation as they sort through the shattered wreckage of a commuter flight to Detroit. (S16, ep 2) 7+.

Authorities suspect a terror attack when a plane explodes after taking off from JFK. The FBI joins investigators in their search for answers. (S16, ep 4) 7+.

The Roman Empire dominated millions of miles of land and sea. What secrets powered its rule over the waves for four centuries? (S2, ep 4) 7+.

Rise of the Gladiator: A soldier enslaved by Rome and forced into gladiatorial combat leads fellow gladiators in a daring escape. (S1, ep 1) 7+.

Investigations across Italy explore the roots of this symbol of Roman power and the gladiator games that were held there. (S1, ep 1) 7+.

Experts find rare treasures and secret tunnels as they hunt for the ancient ruler's tomb in Egypt. But their biggest find is an extraordinary discovery nobody was expecting. 7+.

Experts learn secrets of the Roman Empire when they uncover one of the oldest shipwrecks in the world. A port lost for centuries is also discovered. 7+.