Air date: 2022-09-05

Runtime: 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.

Air date: 2022-09-12

Runtime: 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.

Air date: 2022-09-19

Runtime: 43 min

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

Air date: 2022-09-26

Runtime: 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

Air date: 2022-10-03

Runtime: 43 min

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

Air date: 2022-10-10

Runtime: 43 min

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

Air date: 2022-10-17

Runtime: 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.

Air date: 2022-10-24

Runtime: 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.

Air date: 2022-10-31

Runtime: 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.

Air date: 2022-11-07

Runtime: 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.

Air date: 2022-11-14

Runtime: 43 min

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

Air date: 2022-11-21

Runtime: 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.