National Geographic Channel HD Thursday

The fascinating story of the Christmas crab - a landbound creature that takes an extraordinary annual trip to the ocean

Two fun-loving brothers put an organic spin on the classic cheese twist. And how does vodka help put the zing in a bacon-scented tomato sauce?

Millions of tortilla chips are baked in a tunnel oven before taking a dip in a giant flash fryer. Plus, how is microwaveable popcorn in a bag processed?

Reconstructing the forced landing at sea of a plane flying from Italy to Tunisia in 2005. The ensuing investigation saw nine men charged with criminal negligence

Defensive lines built by the Nazis across Italy, which delayed the advance of Allied forces by almost two years

The siege of Paris in 885, which was just part of the Vikings' persistent and bloody attacks on Francia

The boys head to Somerset to help ex-soldier Ben, who sustained life altering injuries in the line of duty. Can they restore his Jeep Grand Cherokee?

When wild weather and traffic convoys cause carnage, Thord races against time to rescue stranded drivers

The crash of SilkAir flight 185 in 1997, which suddenly plunged 35,000ft while flying over Indonesia, killing 104 people

In the aftermath of the deadliest tsunami in history, with hundreds of casualties, tourists become stranded on an island devastated by the force of the waves

Part two of two. A look at the expansion of the organisation in the build-up to war, and the efforts of the Allies to counter the indoctrination of captured Nazi soldiers

Fuzz Townshend and Tim Shaw restore a Caterham 7 belonging to a former amateur racer, who had to focus on caring for his family after his wife was diagnosed with cancer

Archaeologists excavate the unexplored burial chamber of an ancient pyramid, hoping to find the 4,400-year-old king's mummy and his treasures

How the crew of a British Airways flight managed to avoid disaster in 1982 by restarting the plane's engines after it flew through volcanic ash caused by an eruption

The Surfside Condo collapse, the loss of the Kursk submarine, and the Kings Cross subway fire

Cameras go inside Real Madrid's stadium as it is being transformed with a futuristic façade, retractable roof, and revolutionary underground pitch

As the indigenous peoples of Alaska face a changing and unforgiving climate, they turn to the values of the past as a guide to their future

After the crew manage to land an aircraft on the fritz, investigators must determine how a freshly serviced plane was released with a fatal flaw

When stealth pilot Dale Zelko is shot down on a bombing over Belgrade, the race is on for NATO to find him before he is captured by Serbian forces

Join the anti-narcotics squad at Colombia's El Dorado International Airport. With smugglers constantly inventing new tricks and way of eluding them, there's never a dull moment

Dave gets lucky when he travels 200 miles to search a mine for crystallised gold. Meanwhile, Diego tries to make money from martial arts weapons

The team uncovers a Depression-era portrait, a Zenith radio and a home-made hot rod at a disused cotton factory in Georgia

The team searches the former headquarters of Pabst Brewing Company and finds a blueprint along with a wealth of valuable collectibles

Visit Sunkist's squeaky clean lemon headquarters in California, discover amazing freeze-dried astronaut food, and a Texan pecan pie

On a quest for the ultimate bacon experience, tour a Texas smokehouse where they serve bacon-flavoured soda, and visit a former turkey farm that makes chocolate bacon bits

Animals with unusual mating rituals, from arduous journeys to fights to the death with rivals

Footage of an ant colony in Costa Rica, revealing how a vast horde of half a million insects is able to act like a single larger animal