How do they turn trees into pencils? How do they make liquorice? And, how do they use traditional techniques to weave the world's most fashionable lace?

Three cosmonauts die mysteriously as they re-enter Earth's atmosphere. Plus, a NASA rover discovers clues that help solve a murder.

Two astronauts trapped in the vacuum of space face an agonising death. Plus, the first close up images of Pluto reveal an alien landscape.

The underground bunker of Adolf Hitler is home to some of the greatest secrets of the Nazi regime. Experts use cutting-edge technology to uncover new evidence.

The Leaning Tower of Pisa is one of the world's most iconic buildings, but why does it lean? Investigators uncover the reasons for its tilt.

More everyday items go under the microscope. What are the production processes behind common objects including ochre and hurdy gurdies?

More everyday items go under the microscope. How are common objects including exhaust headers and moulded limestone artwork made?

More everyday items go under the microscope. What are the production processes behind common objects such as recycled skateboard guitars?

More everyday items go under the microscope. How are common objects including racing pulley systems and medicine balls made?

More everyday items go under the microscope. How are common objects including almonds and high-end motorcycles made?

More everyday items go under the microscope. How are common objects including candied fruit and linen ukuleles made?

How do they make a trombone? How do they make traditional Spanish wineskins? Plus, how do they turn smelly muddy peat into rejuvenating face cream?

How do they make the perfect surfboard for catching waves? Plus, how do they turn Danish cream into one of the world's favourite butters?

How are million-dollar racehorses transported across the world to their new owners? Plus, what creative methods are used to photograph food?

How do they produce a million tonnes of stainless steel? How do they keep cash safe with an uncrackable lock? How do they make traditional Indian sugar?

Many items that make up the modern world are the result of sophisticated engineering and production processes. How do they do it?

How do they build one of the world's most exclusive luxury cars? How do they make a referee's whistle that can be heard above 50,000 screaming fans?

Astronauts and cosmonauts battle a life-threatening fire and tackle an out-of-control cargo ship on the Russian space station, MIR.

A deadly collision in orbit punctures the hull of Russian space station, MIR. As oxygen seeps into space, the crew's lifeboat begins to die.

Astronauts are evacuated when a mystery object is discovered hurtling towards the ISS. Plus, a secret agent goes undercover to recover missing moon rocks.

Did Apollo astronauts hear unexplained transmissions on the far side of the moon? Plus, an astronomer spots a strange disturbance in Martian atmosphere.

How are everyday objects made? Common items including Moccasins, Electronic Impact Drills go under the microscope.

More everyday items go under the microscope. How are objects including kimchi and traditional parquet floors made?

More everyday items go under the microscope. How are objects including raw pet food and replica police lanterns made?

More everyday items go under the microscope. How are objects including calissons and diving watercrafts made?

More everyday items go under the microscope. How are objects including game tables and art glass wall sconces made?

More everyday items go under the microscope. How are objects including Marseille soap and Laguiole pocket knives made?

Rumours of a secret US military program to develop super soldiers with psychic powers exploded in the 1970s. Paul sets out to expose the truth.

The zombie apocalypse is one of the most depicted doomsday scenarios in popular culture. During Paul's investigation, COVID-19 spreads across the globe.

The Witchcraft is one of the strangest disappearances from the Bermuda Triangle. An expedition leads to a shocking discovery on the sea floor.

Sightings of ghost ships in the Bermuda Triangle have been reported for centuries. Experts and scientists use cutting-edge technology to try and solve the mystery.

Experts analyse new evidence that could prove the Beast of Bray Road terrorised a Wisconsin town. Plus, is the human-wolf hybrid spreading across the US?

Experts analyse new evidence that could prove the legendary bloodsucking beast known as Chupacabra is real, and that there are two versions of the creature!

Jessica Chobot and Phil Torres investigate a strange phenomenon that has been haunting Mammoth Cave for generations. What will they discover?

Gravitational waves are helping scientists explore the cosmos in new ways. How are these discoveries helping to reveal the universe's mysteries?

Phil Torres and Jessica Chobot follow strange orbs of light into an active volcano in Washington. The team searches for answers about the unexplained.

The zombie apocalypse is one of the most depicted doomsday scenarios in popular culture. During Paul's investigation, COVID-19 spreads across the globe.

How do they make a trombone? How do they make traditional Spanish wineskins? Plus, how do they turn smelly muddy peat into rejuvenating face cream?

How do they make the perfect surfboard for catching waves? Plus, how do they turn Danish cream into one of the world's favourite butters?

How are million-dollar racehorses transported across the world to their new owners? Plus, what creative methods are used to photograph food?