Nat Geo HD

In 1945, HMS Venturer intercepted a U-boat set to deliver German wonder weapons to Japan. The result was history's only sinking of its kind. (S2, ep 5) 7+.

Drawing the attention of the entire world, three fatal design flaws put air crash investigator in a storm of controversy. (S2, ep 10) 7+.

The team explores the wrecks of Hitler's high-tech battleships as they investigate the rise and fall of the Third Reich's deadly fleet. 7+.

Archaeologists investigate the David and Goliath legend, uncovering hints that a real Goliath may have existed. (4 of 6) 7+.

A ship breaks a Baltimore bridge, a Dutch stadium loses its top, a Manhattan crane catches fire, a crooked English pub and a "poonami" in China. (S2, ep 1) 7+.

Tim and Fuzz race to Northumberland to rescue a real barn find, an eccentric 1934 Morgan 3 Wheeler that has been gathering dust in a shed for 50 years. 7+.

A flight vanishes from radar after take off from Shanghai and crashes into a neighbourhood. A simulator rebuild helps investigators uncover the truth. (10 of 10) 7+.

Attention turns to one of the most fearsome weapons of war, the Kamikaze, a tactic explored by the Nazis and perfected by the Japanese. 7+.

The idyllic Caribbean island of Montserrat was shocked when a dormant volcano beneath its exterior erupted in 1995. 7+.

The boys head to Essex to secretly fix up a real 70s supercar, famous for turning into a submarine in a James Bond film. But it hasn't been started in 20 years. 7+.

In 1944, it falls to a small group of American soldiers armed with plastic explosives, grenades and gasoline to capture the all-important Fort Koenigsmacker. 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+.

Brace for disaster as dams fail, buildings collapse and engineers race to stop towering structures from falling apart. (S3, ep 3) 7+.

Homeland Security Investigations seize cocaine from a beached boat. In Texas, Customs and Border Protection officers uncovered packages of methamphetamine. (8 of 8) 7+.

Enter the danger zone as a young CIA officer is kidnapped behind enemy lines and must survive a 24 hour standoff using instinct alone. (1 of 8) 7+.

A series of discoveries spark calls to transform Russia's entire aviation system when an Aeroflot Nord flight crashed onto the Trans-Siberian railway.