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Sacrifice: Witness the aftermath as crews battle radioactive fallout, a concrete tomb seals the reactor and the world questions the Soviet story. (3 of 4) 7+

Truth: Uncover the truth as trials unfold, hidden reactor dangers emerge and decades later Chernobyl's exclusion zone becomes a war zone. (4 of 4) 7+

Control Catastrophe: After a brilliant crew manage to land an aircraft on the fritz, investigators must determine how a freshly serviced plane was released with a fatal flaw. (S22, ep 5) 7+

Hidden Treasures: At JFK Airport, Homeland Security and CBP officers intercept stolen antiquities and fake visas, working on the front line to stop smuggling and fraud. (S4, ep 3) 7+

Riley RMF: Tim and Fuzz take on the challenge of restoring Richard's 1953 Riley RMF, a great British classic that's been in a garage for decades. (S11, ep 3) 7+

Gas Tank Meth: HSI San Diego tails a suspicious pickup truck, which is found to be concealing 26.5 kilos of meth inside the gas tank.

Cereal & Bagels: Discover how an eco-minded cereal gives back to the iconic bird it's named after, and take a look at how bagel crisps are made each year. (S5, ep 13) 7+

Veggies & Apple Butter: A look at why it took dozens of tries to perfect gluten-free veggie pockets, plus why the secret to apple butter is all in the details. (S5, ep 14) 7+

Army of Ants: Made up of half a million ants, this Costa Rican colony stalks the forest floor. Hunting as one super organism, it's as deadly as any four-legged predator. (S1, ep 6) 7+

Elephants on the Edge: Mali is home to a rare tribe of elephants. They are one of just two herds of desert-dwelling elephants in the world. But they are struggling to survive. (S1, ep 7) 7+

Teleshopping.

Teleshopping.

Teleshopping.

Teleshopping.

Your one-stop-shop for all things cruise; bringing you the hottest destinations, ground-breaking ships and the latest deals to ensure your next cruise is your greatest one!

Delivery To Disaster: When an Amazon cargo plane nosedives into a swamp outside Houston, the investigation brings to light a pilot with a long history of failures. (S22, ep 9) 7+

Rise of the Supertalls: After the Twin Towers fell, doubts grew - but bold new safety breakthroughs sparked a surge, as taller, stronger skyscrapers rose worldwide. (S1, ep 5)

The Lone Wolves: Experts deep dive into the various lone wolf assassination attempts made on Adolf Hitler. Through detailed scientific analysis and dramatic reconstructions. (S1, ep 1) 7+

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

Killers from Within: An attempt on Hitler's life must now come from within. A small group risk their lives to plot the assassination. (S1, ep 3) 7+

USS Johnston: America's Deepest Loss: Research vessel Petrel picks up what they believe to be the debris trail of the USS Johnston, 8,000 feet deeper than the Titanic. (S1, ep 8) 7+

Explore the dark treacherous waters of the Black Sea, which contain a treasure trove of sunken wrecks that have been near-perfectly preserved in its murky depths. 7+

Shipwreck Coast: Dive into the Great Lakes as new science uncovers recent shipwrecks, including mysterious vessels lost beneath the waters since 1914. 7+

Drain the Top Secret Wrecks: Explore the tragic trail of wreckage Pearl Harbour, HMS Prince of Wales and USS Lexington left behind on the ocean floor. 7+

Shattered in Seconds: After taking off from Taiwan, a China Airlines 747 suddenly disappeared from radar and crash-landed, killing 225 people. Researchers try to find out why. 7+

Beach Crash: Looks into the crash of Chalk's Ocean Airways Flight #101. Rocked by an explosion 500 feet up, the aircraft plunged into the ocean leaving no survivors. (S8, ep 8) 7+

Hitler's Henchman: The story of propaganda maestro Joseph Goebbels and Holocaust architect Heinrich Himmler: two men who built one of the largest social megastructures ever. 7+

Stefan Hördler, a world-leading expert on Nazi history, investigates a previously unpublished album containing hundreds of Nazi officer faces.

Never-before-heard trial testimony reveals shocking new details about World War II and the inner workings of the Nazi war machine. 18+

When Fear Spreads: Witch hunts grip Europe as fear spreads. In 1645, ruthless witchfinders terrorise England, while in Sweden, mass hysteria erupts. (S1, ep 2) 18+

Sail: Amsterdam erupts as 800 ships arrive and crowds surge. With 150,000 extra passengers, staff battle to control the chaos, tackle incidents and keep the station safe. (S2, ep 2)