Nat Geo HD

As Hitler calls for Total War, every man, woman and child is forced to play their part. The result is one of the greatest air defence systems ever. 7+.

As students reach the midpoint of their training, they start the dogfighting phase. To pass, they must outmaneuver their opponent and take a 'kill shot'. (S1, ep 3) 7+.

Tragedy In The Air: F1 driver Niki Lauda investigates the fate of Lauda Air Flight 004, uncovering a design flaw that could affect planes globally. (S13, ep 2) 7+.

Mother Nature's game is not for the weak or unprepared and the next generation of Alaskans must rise to the occasion.

A drug vehicle unloads in a parking lot and the driver flees on foot. Meanwhile, a second stash of cocaine is found in a storage unit. 7+.

At LAX, CBP dismantles a shipment with 66 kilos of meth worth $509,000 and a music festival draws travellers with illegal promethazine and firearms. 7+.

Dave hopes to find hidden gold in a former jewellery store. Plus, Rich makes an unlikely find when he clears out an antique dealer's storage locker. 7+.

Rich hunts for old rocket parts under the belief they are made from precious metal. Plus, how much can Dave make from the silver found on old photo paper? 7+.

Get to grips with Hot Tamales and cheese crisps, and visit a state-of-the-art factory that produces 1.5 billion chocolate truffles a year. (S4, ep 12) 7+.

Sink your teeth into Indian cashew candy, cookies and tropical smoothies and learn how to produce 500,000 chocolate bars a day. (S4, ep 13) 7+.

The beaches of North Carolina are the site of four shark attacks, and experts are determined to find out why. (S6, ep 11) 12+.

In 2010, the peace enjoyed by visitors and residents alike was suddenly shattered by a shocking shark attack - the first ever recorded along its coast. 12+.

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Chris discovers there's nothing like a war to get an inventor's cogs going, as he investigates fire pumps, radar, shrapnel-proof fire engines and tractors. 7+.

Sriwijaya Air Flight 182 crashed into the Java Sea after a hard left bank, revealing deadly defects in the investigation that followed. (S24, ep 2 of 10) 7+.

A tense look at the worst nuclear incident since Chernobyl. As a tsunami hit the Fukushima power plant in 2011, explosions tore the site apart, releasing lethal radiation. 7+.

German U-Boat commander Gunther Prien is recalled from patrol early and offered a secret mission to strike the Royal Navy at its home port. (S3, ep 1) 7+.

German and Italian tanks roll into British-controlled Egypt in a bid to capture the vital Allied supply route through the Suez Canal. (S3, ep 3 of 6) 7+.

Approaching Taipei in an intensifying electrical storm, China Airlines Flight 676 falls out of the sky, killing all 196 people on board. But why? (10 of 10) 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+.

Resistance fighters in German-occupied nations risk all to assassinate Hitler. Experts reveal the plot details of each mission. (S1, ep 2) 7+.

In lakes and rivers of the modern United States, teams of explorers are discovering forgotten shipwrecks from the American Revolution. 7+.

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+.