Nat Geo HD

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+.