After the fall of France in 1940, Dönitz’s trio of aces embark on a race to sink British merchant ships. In Britain, the woman who will frustrate his plans turns the Women’s Royal Naval Service into a force to be reckoned with.

Pyramids have been found all around the world. Experts explore the strange similarities between all pyramids, as well as otherworldly connections. What purpose did the pyramids serve?

The origins of the remote Hawaiian island chain have remained a puzzle for generations.

This episode features the most dramatic object in the collection – the stunning Knights Templar Sword that Carl and Hamilton believe might have been used at the infamous battle of Acre – the last stand of the Knights Templar in the Holy Land.

Danger awaits amber hunters. Krzysztof’s field is flooded and smoke starts blowing from his caravan. Sappers clear the sea floor from unexploded bombs. Dorota begins the certification process for her jewellery. The storm arrives on the Baltic sea.

For billions of people, Jesus is known as 'The Messiah' and his teachings have inspired one of the most powerful religions in the world. Nearly everything we know about Jesus comes from the four gospels - but how accurate are these sacred texts?

Ross tries to find out more about his sea-faring Great Grandfather, Arthur ‘Pop’ Chalmers. He discovers that Pop served in the Merchant Navy and survived three shipwrecks. Inspired to know more, he links up with maritime archaeologist, Mallory Haas.

An asteroid impact 65 million years ago caused the downfall of the dinosaurs. What would happen if a simliar space rock struck near the same spot again? How would modern humans cope with the ensuing cascade of natural catastrophes?

After the fall of France in 1940, Dönitz’s trio of aces embark on a race to sink British merchant ships. In Britain, the woman who will frustrate his plans turns the Women’s Royal Naval Service into a force to be reckoned with.

Pyramids have been found all around the world. Experts explore the strange similarities between all pyramids, as well as otherworldly connections. What purpose did the pyramids serve?

The origins of the remote Hawaiian island chain have remained a puzzle for generations.

This episode features the most dramatic object in the collection – the stunning Knights Templar Sword that Carl and Hamilton believe might have been used at the infamous battle of Acre – the last stand of the Knights Templar in the Holy Land.

Danger awaits amber hunters. Krzysztof’s field is flooded and smoke starts blowing from his caravan. Sappers clear the sea floor from unexploded bombs. Dorota begins the certification process for her jewellery. The storm arrives on the Baltic sea.

For billions of people, Jesus is known as 'The Messiah' and his teachings have inspired one of the most powerful religions in the world. Nearly everything we know about Jesus comes from the four gospels - but how accurate are these sacred texts?

Ross tries to find out more about his sea-faring Great Grandfather, Arthur ‘Pop’ Chalmers. He discovers that Pop served in the Merchant Navy and survived three shipwrecks. Inspired to know more, he links up with maritime archaeologist, Mallory Haas.

An asteroid impact 65 million years ago caused the downfall of the dinosaurs. What would happen if a simliar space rock struck near the same spot again? How would modern humans cope with the ensuing cascade of natural catastrophes?

After the fall of France in 1940, Dönitz’s trio of aces embark on a race to sink British merchant ships. In Britain, the woman who will frustrate his plans turns the Women’s Royal Naval Service into a force to be reckoned with.

Pyramids have been found all around the world. Experts explore the strange similarities between all pyramids, as well as otherworldly connections. What purpose did the pyramids serve?

The origins of the remote Hawaiian island chain have remained a puzzle for generations.

This episode features the most dramatic object in the collection – the stunning Knights Templar Sword that Carl and Hamilton believe might have been used at the infamous battle of Acre – the last stand of the Knights Templar in the Holy Land.

Danger awaits amber hunters. Krzysztof’s field is flooded and smoke starts blowing from his caravan. Sappers clear the sea floor from unexploded bombs. Dorota begins the certification process for her jewellery. The storm arrives on the Baltic sea.

Biblical prophecies are said to be messages and warnings sent from God, but what do they really foretell? Can they be decoded and used to predict mankind's future?

This time on River hunters we take on the River Garry, situated in the beautiful Scottish Highlands. Presenter Rick Edwards and river detectorist Beau Ouimette are searching for evidence of one of Scotland’s bloodiest eras, the Jacobite Rebellions.

Human civilisation is under attack from a catastrophic - but unseen - threat from space. As a supermassive black hole approaches our planet, its enormous gravitational forces trigger earthquakes, volcanic eruptions and tsunamis of unprecedented size.

When Gilbert Roberts arrives to set up a tactical school for the U-boats, he receives a frosty reception from Admiral Noble. Enlisting the help of Jean Laidlaw and a small team of Wrens, Roberts begins unpicking the flaws in Walker’s ‘Buttercup’.

People in many lands have claimed to see the footprints of giant ape-men. What if, as ancient astronaut theorists believe, there is evidence to connect Bigfoot with an alien species that once visited Earth in the distant past?

Across North America there is something strange and frightening circling overhead. Witnesses tell of human-like creatures that float or hover in the skies and often descend to attack. Legends and folklore tell of strange flying creatures.

Investigator Ben Smith travels to Jesse Marcel's hometown. As the results come back from soil, metal and forensic handwriting analysis, Smith shares his findings with the Marcel grandchildren who believe their grandfather was telling the truth.

Tales of Bigfoot sightings are reported globally but the Alaskan version is the most extreme, standing over 14 feet tall. Is this massive, aggressive creature targeting people in the Alaska Triangle?

Biblical prophecies are said to be messages and warnings sent from God, but what do they really foretell? Can they be decoded and used to predict mankind's future?

This time on River hunters we take on the River Garry, situated in the beautiful Scottish Highlands. Presenter Rick Edwards and river detectorist Beau Ouimette are searching for evidence of one of Scotland’s bloodiest eras, the Jacobite Rebellions.

Human civilisation is under attack from a catastrophic - but unseen - threat from space. As a supermassive black hole approaches our planet, its enormous gravitational forces trigger earthquakes, volcanic eruptions and tsunamis of unprecedented size.