1. Raiders & Invaders

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. 5 September 2022. 43 min

Explore Oradour-sur-Glane, a French town drenched in infamy, the victim of a notorious raid, Alcatraz, a facility famed for breakouts, subjected to a daring break-in, and Sealand, a micronation off the English coast, stormed by a band of mercenaries.

2. The Rock

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. 12 September 2022. 43 min

The Tunnels of Gibraltar were a Second World War espionage base, hidden in the Rock of Gibraltar, which lay undiscovered for decades. At Atlas-1 Test Site, are the remains of an ingenious US Airforce project that continues to keep people safe.

3. Enemy At The Gates

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. 19 September 2022. 43 min

Exploring a series of vaults, hidden from view in Edinburgh, Scotland that tell a murky story of opportunity, crime and destitution.

4. Cowboy Mountain

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. 26 September 2022. 43 min

Exploring the remains of an ingenious sky-high solution to a ground-based problem, Chiatura, once know as the Venice of the air

5. Drone Wars

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. 3 October 2022. 43 min

Exploring Agdam, a city in Azerbaijan raised to the ground in a conflict decided by a new weapon of war.

6. Moonshot

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. 10 October 2022. 43 min

Exploring an industrial ruin in the Florida Everglades that once competed in the greatest race humankind has ever witnessed.

7. Rock And Ruin

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. 17 October 2022. 43 min

Exploring traces of a mass deception hidden at Ponte Dirillo in Italy, as well as a once lavish theatre in Ohio and an ancient city with a poisonous secret.

8. Castle Of The Occult

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. 24 October 2022. 44 min

Explores a dense forest near the Czech capital of Prague that hides Houska Castle, an eerie keep that has been subject to long-standing rumours that it possesses supernatural powers.

9. The Green Line

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. 31 October 2022. 44 min

Exploring Serbia, Fort Pike in Louisiana, and a mountainside refuge in Georgia that was revealed to the world by an act of God.

10. Blitz Spirit

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. 7 November 2022. 44 min

Exploring a grand structure in Hull that was reduced to rubble by Hitler's planes, Casa Albero in Italy, USS Hornet in California and the Sofia tunnels.

11. An American Exodus

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. 14 November 2022. 43 min

Exploring a decrepit Liberian landmark with American origins, a desolate town in Belgium and a pioneering scientific structure in Cleveland.

12. The Drop

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. 21 November 2022. 44 min

Exploring the Dew Drop Inn in New Orleans that dared to take on the authorities and paid the price and Belgica Fort, built to defend an unlikely treasure.