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A Soviet offensive pushes German forces 30km from the Polish border. On June 6, 1944, Operation Overlord is launched against Germany.

After finding artefacts at a sunken pier, Darrell and his team discover a possible component of a secret weapon used by the Nazis.

Explore how the Axis Powers' ruthless, brutal occupation and exploitation of other countries contributed to their demise.

Through history, mankind has credited its existence to otherworldly beings. Could this be true? Can any proof be found in these early beliefs.

In the countryside of Wiltshire, England lies Rudloe Manor. A quaint manor house? Or epicentre of British UFO research since World War II.

Could aliens have already landed on Earth? Experts visit the Texas cemetery believed to hold the body of a life form that crashed there in 1897.

Experts search for proof of alien visitors in the ruins of lost civilisations. Could Mayan carvings reveal a city once ruled by otherworldly beings.

From gunpowder to missiles, were these lethal weapons the product of human innovation or created with help from another, otherworldly source.

Experts scrutinise prehistoric ruins, asking whether humans could have built these advanced structures alone. Might they have had alien help.

Ancient alien theorists explore the origins of mythical gods. Could these tales of superhuman beings be based on sightings of extraterrestrials.

Mississippi Bigfoot, Ufo Shot Down Over Great Lakes and Mexico's Alien Corpses: Is famous footage of the Mississippi Bigfoot the real deal.

After finding artefacts at a sunken pier, Darrell and his team discover a possible component of a secret weapon used by the Nazis.

Explore how the Axis Powers' ruthless, brutal occupation and exploitation of other countries contributed to their demise.

For decades, residents in Nova Scotia have reported munitions washing up on their shores - believed to have come from the wreck of the SS Clare Lilley.

Science reveals new insights into belief and superstition in the land of the Pharaohs, from finding the long-lost 'Land of Punt' to Tutankhamun.

Through history, mankind has credited its existence to otherworldly beings. Could this be true? Can any proof be found in these early beliefs.