The team searches for a mechanic to resurrect the nearly dead Rover; they cross Azerbaijan, Georgia and Turkey before rejoining the original overland route and racing back to the UK for a tearful, joyous reunion at the finish line.

Gregg Wallace is at Britain's biggest brewery, which produces three million pints of beer a day; he follows the production of Britain's best-selling lager, and gets to grips with brewing terms.

Gregg visits a factory that churns out 32 million mints per day; Cherry Healey visits the largest sugar beet factory in Europe; Ruth Goodman explores minty mouthwash marketing.

Spring in the polar regions; the greatest seasonal transformation of the planet begins with the return of the sun.

The Earth's surface is changing faster than ever in human history: cities grow, forests disappear and glaciers melt; a man feeds thousands of parakeets in a city; in Sumatra, a female orangutan and her daughter face life in a forest under threat.

The chicks are getting more independent.

Hope travels to the jungles of Costa Rica to meet front line wildlife rescuers.

A breathtaking journey down the German section of the beautiful Moselle river, famous for vineyards on its dramatically steep banks and remarkable meandering loops.

How hurricanes begin and end and how technological advances are helping combat the dangers they pose.

Hope discovers a horrifying problem in Costa Rica where man and monkey cross paths.

New York's Hudson River stretches 315 miles through natural landscapes, from the Adirondack Mountains to the George Washington Bridge and Statue of Liberty.

The 2008 Super Tuesday tornado outbreak is investigated to see why the storms occurred mid-winter and why tornados remain so enigmatic.

First of a two part film offering a rare insight into the life of polar bears.

Gregg Wallace discovers how one of Britain's largest bakeries makes up to 1.5 million loaves of bread each week; he also uncovers the secrets to baking 4,000 loaves at once.

Two brilliant physicists, Albert Einstein and Stephen Hawking have each defined humanity's understanding of the universe but their beliefs on how it works do not always align.

As the Serengeti starts to dry out, competition heats up between the families; the strong females take center stage, dealing with headstrong males and fighting for the survival of their kin.

The team searches for a mechanic to resurrect the nearly dead Rover; they cross Azerbaijan, Georgia and Turkey before rejoining the original overland route and racing back to the UK for a tearful, joyous reunion at the finish line.

Gregg Wallace is at Britain's biggest brewery, which produces three million pints of beer a day; he follows the production of Britain's best-selling lager, and gets to grips with brewing terms.

Gregg Wallace discovers how one of Britain's largest bakeries makes up to 1.5 million loaves of bread each week; he also uncovers the secrets to baking 4,000 loaves at once.

It is high summer in the polar regions, and the sun never sets; many species take advantage of the easier conditions, but summer is a tough time for the polar bear family, as their ice world melts away and the cubs take their first swimming lesson.

The now half-grown cubs must learn the skills they'll need as adults.

Remote islands offer sanctuary; pygmy three-toed sloth resides on a Caribbean island; nesting albatross thrive in isolation.

The story of how plant life turned Earth from a barren rock into a vibrant green world; a four-billion year saga of highs and lows that almost wiped out all life on the planet.

The now half-grown cubs must learn the skills they'll need as adults.

Remote islands offer sanctuary; pygmy three-toed sloth resides on a Caribbean island; nesting albatross thrive in isolation.

The story of how plant life turned Earth from a barren rock into a vibrant green world; a four-billion year saga of highs and lows that almost wiped out all life on the planet.

Gregg Wallace discovers how one of Britain's largest bakeries makes up to 1.5 million loaves of bread each week; he also uncovers the secrets to baking 4,000 loaves at once.

It is high summer in the polar regions, and the sun never sets; many species take advantage of the easier conditions, but summer is a tough time for the polar bear family, as their ice world melts away and the cubs take their first swimming lesson.

Two brilliant physicists, Albert Einstein and Stephen Hawking have each defined humanity's understanding of the universe but their beliefs on how it works do not always align.

First of a two part film offering a rare insight into the life of polar bears.

Spring patients are ready to return to the wild.

Bill Nighy narrates a trip along the River Po, traveling across northern Italy from the snow-capped Alps to the delta where it meets the Adriatic Sea.

A team of astronomers determine the ultimate fate of Earth, several billion years from now.

Excitement mounts as Hope's open house approaches; a deer doesn't want to depart.

Bill Nighy leads a magical journey in the Norfolk Broads along England's holiday river, the River Bure; discovering a watery world where both wildlife and recreation go hand in hand.

Missions are heading to Jupiter to discover how planets form and to find out if there is life on the planets four largest moons.

Second of a two part film offering a rare insight into the life of polar bears.

Gregg Wallace is inside one of the world's largest chocolate factories in York to discover how they produce a staggering 7 million bars a day. He follows the incredible 24 hour journey - from bean to bar - of one of our best-selling chocolates.

Two brilliant physicists, Albert Einstein and Stephen Hawking have each defined humanity's understanding of the universe but their beliefs on how it works do not always align.

The now half-grown cubs must learn the skills they'll need as adults.

Remote islands offer sanctuary; pygmy three-toed sloth resides on a Caribbean island; nesting albatross thrive in isolation.

The story of how plant life turned Earth from a barren rock into a vibrant green world; a four-billion year saga of highs and lows that almost wiped out all life on the planet.

Gregg Wallace is inside one of the world's largest chocolate factories in York to discover how they produce a staggering 7 million bars a day. He follows the incredible 24 hour journey - from bean to bar - of one of our best-selling chocolates.

Polar landscapes in autumn are transformed as the big freeze returns; in the Arctic, polar bears gather in large numbers on the coast to wait for the return of the ice; off the coast 2,000 beluga whales head for a special estuary.

Australia's Kangaroo Island is ravaged by deadly bushfires; in Kansas, two tornado chasers let a tourist to ride along with them as they intercept a monster tornado; two sailors navigate cyclone-force winds.

With summer nearing its end, Alaskans kick into high gear.

Alaskans power through the dog days of summer.

Australia's Kangaroo Island is ravaged by deadly bushfires; in Kansas, two tornado chasers let a tourist to ride along with them as they intercept a monster tornado; two sailors navigate cyclone-force winds.

With summer nearing its end, Alaskans kick into high gear.

Alaskans power through the dog days of summer.

Gregg Wallace is inside one of the world's largest chocolate factories in York to discover how they produce a staggering 7 million bars a day. He follows the incredible 24 hour journey - from bean to bar - of one of our best-selling chocolates.

Polar landscapes in autumn are transformed as the big freeze returns; in the Arctic, polar bears gather in large numbers on the coast to wait for the return of the ice; off the coast 2,000 beluga whales head for a special estuary.

Two brilliant physicists, Albert Einstein and Stephen Hawking have each defined humanity's understanding of the universe but their beliefs on how it works do not always align.

Second of a two part film offering a rare insight into the life of polar bears.

Hope Swinimer rescues, rehabilitates and releases thousands of animals each year, while struggling to make ends meet; she is driven by her compassion and belief that every animal matters.

Traveling the Dordogne River via traditional boats through the green heart of southwest France; drinking wine and hunting for truffles; riding a luxury cruiser to a lighthouse built for a king.

The diamond's rise from gemstone to a cutting-edge material that is set to revolutionize electronics.

A rare owl appears ready for release but everyone wonders if it will fly.

A journey down Spain's Guadalquivir River, from the high Sierra de Cazorla down to Andalusia; passing through Cordoba and Seville, following the footsteps of Columbus and Magellan.

Scientists explore whether Earth's estranged twin Venus could be a vision of our planet's future.

Gordon Buchanan joins Dr. Victor Lukarevsky in Russia to attempt to rehabilitate two pairs of lynx held captive for years.

Gregg Wallace gets exclusive access to one of the largest fresh milk processing plants on earth to see how they get milk from cow to carton in less than 24 hours. He reveals how one factory can process 2000 litres of milk in under a minute.

Analyze the ways in which cold has shaped the physical world, and learn why the definition of frozen may require an update; meet scientists pushing frigid temps to their absolute limit, driving technological developments such as superconductors.

Australia's Kangaroo Island is ravaged by deadly bushfires; in Kansas, two tornado chasers let a tourist to ride along with them as they intercept a monster tornado; two sailors navigate cyclone-force winds.

With summer nearing its end, Alaskans kick into high gear.

Alaskans power through the dog days of summer.

Gregg Wallace gets exclusive access to one of the largest fresh milk processing plants on earth to see how they get milk from cow to carton in less than 24 hours. He reveals how one factory can process 2000 litres of milk in under a minute.

Winter is the greatest test for life in the polar regions; in the Arctic, a female polar bear treks into the mountains to give birth; out on the frozen ocean, the entire population of the world's spectacled eider ducks braves the winter.

From space, satellite cameras reveal that Earth is a kaleidoscope of color; turquoise plankton blooms trigger a feeding frenzy, China turns yellow with rapeseed flowers, and mysterious green lights appear in the ocean.

Brian explores one of the greatest mysteries in physics: time.

Scientists explore how to protect the earth when solar storms destroy earthbound technologies and send satellites crashing to earth.

From space, satellite cameras reveal that Earth is a kaleidoscope of color; turquoise plankton blooms trigger a feeding frenzy, China turns yellow with rapeseed flowers, and mysterious green lights appear in the ocean.

Brian explores one of the greatest mysteries in physics: time.

Scientists explore how to protect the earth when solar storms destroy earthbound technologies and send satellites crashing to earth.

Gregg Wallace gets exclusive access to one of the largest fresh milk processing plants on earth to see how they get milk from cow to carton in less than 24 hours. He reveals how one factory can process 2000 litres of milk in under a minute.

Winter is the greatest test for life in the polar regions; in the Arctic, a female polar bear treks into the mountains to give birth; out on the frozen ocean, the entire population of the world's spectacled eider ducks braves the winter.

Analyze the ways in which cold has shaped the physical world, and learn why the definition of frozen may require an update; meet scientists pushing frigid temps to their absolute limit, driving technological developments such as superconductors.

Gordon Buchanan joins Dr. Victor Lukarevsky in Russia to attempt to rehabilitate two pairs of lynx held captive for years.

From the San Juan Islands of Washington State to the Kootenays in the east, exploring the pristine, Pacific border region separating Canada and the United States.

Mexico's Yucatan Peninsula houses ships converted to artificial reefs.

Volcanologist Tom Pfeiffer explores some of Indonesia's most remote volcanoes.

Dogs indeed account for more than half of the patients at Rocky Rapids Clinic; Dr. Savannah works tirelessly to keep rural Alberta's four-legged canine friends healthy and safe.

Pets need their owners to meet their basic needs, but humans can also gain an emotional benefit from their pets; Dr. Savannah explores the loving connection between humans and their pets when two of her longtime clients lose their beloved ferret.

Over a hundred massive concrete arrows scattered across America; a giant chalk figure with an oversized phallus on an English hillside; a mysterious hole in the middle of a lake in Southern California.

Griff Rhys Jones explores the province of Ontario.

The now half-grown cubs must learn the skills they'll need as adults.

From the bone-dry deserts of the Atacama, where penguins weave their way through a minefield of snapping sea lions, to the lush cloud forests of the Andes, South America is full of unusual and ingenious wildlife.

Asia is the largest and most extreme continent on the planet, stretching from the Arctic Circle to the tropical forests on the Equator.

High above the city of Gibraltar, Barbary macaques, Europe's only non-human primates, live lives full of kidnappings and high drama; in the cemeteries of Vienna Grave Robbing European hamsters do battle with each other for food.

Icy Antarctica is a land of survivors enduring the most hostile conditions on Earth.

Africa is home to the greatest collection of wildlife on Earth, with a vast tropical rainforest full of life at its heart, but animals face big challenges in this land of plenty.

Gregg Wallace is at Britain's biggest brewery, which produces three million pints of beer a day; he follows the production of Britain's best-selling lager, and gets to grips with brewing terms.

Asia has the longest coastline of any continent, rich coral reefs, and never-seen-before animal behavior; exploring Asia's diverse waters.

More than any other continent, North America is defined by extreme weather and seasonal change; for animals that live here this poses great challenges, but for those with a pioneering spirit it can also offer great rewards.

Steve heads into Yucatan, Mexico, on the trail of the ancient Maya, uncovering secrets and artifacts.

More than any other continent, North America is defined by extreme weather and seasonal change; for animals that live here this poses great challenges, but for those with a pioneering spirit it can also offer great rewards.

Steve heads into Yucatan, Mexico, on the trail of the ancient Maya, uncovering secrets and artifacts.

The Earth's surface is changing faster than ever in human history: cities grow, forests disappear and glaciers melt; a man feeds thousands of parakeets in a city; in Sumatra, a female orangutan and her daughter face life in a forest under threat.

Two brilliant physicists, Albert Einstein and Stephen Hawking have each defined humanity's understanding of the universe but their beliefs on how it works do not always align.

Two brilliant physicists, Albert Einstein and Stephen Hawking have each defined humanity's understanding of the universe but their beliefs on how it works do not always align.

Soaring high above the incredible landscapes along BC's Kootenay border region.

The ancient Aztec legend of Popocatépetl.

In Indonesia, the air is 40 times above safe levels for humans and sulphuric acid vents from the ground in dense, yellow clouds; small volcanoes are reported to erupt every 15 minutes.

Dr. Savannah heads to Cambridge Bay, Nunavut in the far Arctic, to offer her expert services at a volunteer vet clinic; it's the only chance the residents will have all year to seek medical advice for their pets.

Variety is the spice of life for Dr. Savannah as every day presents a host of new changes, from inner-city wild bird rescues to performing an emergency c-section on a pregnant cow.

A Turkish drought reveals a long-lost ancient Basilica and its secrets; a church spire punches through the surface of a toxic sludge in Romania; the hull of a massive ship in the North Sea answers decades old questions.

British comedian and travel enthusiast Griff Rhys Jones explores the Frozen Wilds of Canada's North, in the province of Manitoba. From Winnipeg to Churchill, he travels from the Country's coldest City, to a town with more polar bears than people. He tries his hand at dog-sledding and does his best not to freeze, all the while exploring what it is that entices people to the cold, and why the North is so important to Canada.

Alaskans power through the dog days of summer.

Gregg Wallace gets exclusive access to one of the largest fresh milk processing plants on earth to see how they get milk from cow to carton in less than 24 hours. He reveals how one factory can process 2000 litres of milk in under a minute.

Gregg Wallace explores Ribena's Gloucestershire factory, which turns 90 percent of Britain's blackcurrants into soft drinks, producing 3 million bottles a week; Cherry Healey is harvesting the berries in Kent.

Gregg explores a coffee factory that produces 175,000 jars of coffee everyday; Cherry learns about coffee chemistry.

Gregg Wallace is at Britain's biggest brewery, which produces three million pints of beer a day; he follows the production of Britain's best-selling lager, and gets to grips with brewing terms.

Gregg Wallace visits the biggest cider factory in the world, which produces more than 350 million litres each year; the scale of production blows his mind, as at each turn he's confronted with huge machinery and incredible processes.

The story of how plant life turned Earth from a barren rock into a vibrant green world; a four-billion year saga of highs and lows that almost wiped out all life on the planet.

More than any other continent, North America is defined by extreme weather and seasonal change; for animals that live here this poses great challenges, but for those with a pioneering spirit it can also offer great rewards.

Asia is the most mountainous continent on earth; from the tropical south to its barren centre, its highest places are home to some of our planet's most remarkable wildlife.

Brian learns that the solar system was once home to two blue planets.

Remote islands offer sanctuary; pygmy three-toed sloth resides on a Caribbean island; nesting albatross thrive in isolation.

Asia is the most mountainous continent on earth; from the tropical south to its barren centre, its highest places are home to some of our planet's most remarkable wildlife.

Brian learns that the solar system was once home to two blue planets.

Remote islands offer sanctuary; pygmy three-toed sloth resides on a Caribbean island; nesting albatross thrive in isolation.

Gregg Wallace gets exclusive access to one of the largest fresh milk processing plants on earth to see how they get milk from cow to carton in less than 24 hours. He reveals how one factory can process 2000 litres of milk in under a minute.

Gregg Wallace explores Ribena's Gloucestershire factory, which turns 90 percent of Britain's blackcurrants into soft drinks, producing 3 million bottles a week; Cherry Healey is harvesting the berries in Kent.

Gregg explores a coffee factory that produces 175,000 jars of coffee everyday; Cherry learns about coffee chemistry.

Gregg Wallace is inside one of the world's largest chocolate factories in York to discover how they produce a staggering 7 million bars a day. He follows the incredible 24 hour journey - from bean to bar - of one of our best-selling chocolates.

Two tiny orphans struggle to survive; Hope takes a second swing at a release gone wrong.

Discover the stories of six epic river journeys via the fascinating characters who live and work on and around the water.

Some of the world's greatest scientists devise scenarios for destroying Earth.

A most unusual fawn arrives on Hope's doorstep; a graveyard is the spooky setting for an unlikely reunion.

Rumoured to be the cleanest river in Europe, few dispute it's the coldest; cascading down from the Dinaric Alps in Serbia, it soon crosses the border into Bosnia Herzegovina, where marine biologist and fisherman Sanel Riđanović casts for salmon.

A vanished Neolithic structure in an Irish farmer's field, an ancient oasis in the remote reaches of a Chinese desert, a centuries-old buried treasure in the UK and a dreaded predator in the Pacific Ocean are discovered by accident using drones.

The differences between the Northern and Southern Rockies.

Scientists postulate that Earth was once sheathed in ice and complex animals evolved when the planet thawed, due to the release of carbon dioxide.

How the earth's atmosphere came to be; the one man to have braved the atmosphere's upper reaches and survived.

The search for the building blocks of life on Mars; an attempt to prove life was, or is, possible on the red planet.

The Cassini-Huygens spacecraft has been sending images and a wealth of scientific revelations from Saturn's orbit since 2004.

Scientists work to find ways to safeguard Earth from potential threats posed by asteroids and other cosmic debris.

Scientists explore how to protect the earth when solar storms destroy earthbound technologies and send satellites crashing to earth.

The sudden release of built-up magnetic energy in the solar atmosphere - a solar storm - affects Earth.

Sardinia boasts a notable number of centenarians, causing Zac to rethink his views on nutrition as he ponders how the locals live such long healthy lives.

The Earth's surface is changing faster than ever in human history: cities grow, forests disappear and glaciers melt; a man feeds thousands of parakeets in a city; in Sumatra, a female orangutan and her daughter face life in a forest under threat.

Brian questions how far humans will go in their exploration of the cosmos.

Sardinia boasts a notable number of centenarians, causing Zac to rethink his views on nutrition as he ponders how the locals live such long healthy lives.

The Earth's surface is changing faster than ever in human history: cities grow, forests disappear and glaciers melt; a man feeds thousands of parakeets in a city; in Sumatra, a female orangutan and her daughter face life in a forest under threat.

Brian questions how far humans will go in their exploration of the cosmos.

Gregg Wallace takes an exclusive tour of Kellogg's massive Manchester factory to discover, step-by-step, what it takes to produce a million boxes of cereal every day; Cherry Healey discovers how special nutrients are added to cereal.

A look at the extraordinary riches and wonders of the polar regions and the people that have been visiting them for thousands of years.

Helen Czerski reveals how life began when hot met cold, and how every single living creature on Earth depends on temperature for its survival; she witnesses the remarkable surgery that uses temperature to push the human body to the brink of life.

Gordon Buchanan returns to Russia to help Dr. Victor Lukarevsky prepare rehabilitated lynx for release back in the wild.

Two members of Hope's team travel to England to discover new techniques and make allies on the front lines of animal rescue.

Tackling the grade 6 rapids and untamed waters of the Buller River on the west coast of New Zealand's South Island, blessed by a Māori elder of the Ngāti Apa ki te Rā Tō.

A Nazi weapon designed to turn the tides of WWII in Northern France; a secret Russian military tower in the shadow of the Chernobyl disaster; a forgotten Australian tunnel rumored to hide a nuclear lab; something shocking buried under Alcatraz.

Barry and Hayley's adventure in the UK continues at a rehab center where they use the latest in alternative therapies.

Escape with us on a thrilling journey down the river that forged North America ... the St. Lawrence. From the grandeur of the Great Lakes to the picturesque 1000 Islands and through the vibrant, historic cities of Montreal and Quebec. Past rugged landscapes and into the world's largest estuary. To sailors, kayakers and whale watchers the river is part playground, part paradise. Sailing by castles, diving for shipwrecks and rowing the open water.

Over a hundred massive concrete arrows scattered across America; a giant chalk figure with an oversized phallus on an English hillside; a mysterious hole in the middle of a lake in Southern California.

The history of the formation of the world's largest freshwater lake system reveals many mysteries surrounding the geological phenomenon.

A series of violent and dramatic processes leads to the development of the universe, eventually leading to the existence of man.

The mystery of where water comes from or how it arrived on Earth.

How hurricanes begin and end and how technological advances are helping combat the dangers they pose.

The 2008 Super Tuesday tornado outbreak is investigated to see why the storms occurred mid-winter and why tornados remain so enigmatic.

A team of astronomers determine the ultimate fate of Earth, several billion years from now.

Missions are heading to Jupiter to discover how planets form and to find out if there is life on the planets four largest moons.

The diamond's rise from gemstone to a cutting-edge material that is set to revolutionize electronics.

The anticipation of the annual Great Migration is being felt by all of the Serengeti's families as they wait with great desperation for it to arrive; the land continues to get hotter and hunger starts to bite as food becomes even more scarce.

The surprising similarities humans share with whales; Steve goes on an underwater expedition to learn about singing humpbacks, matriarchal sperm whales and playful dolphins and examines how humans early fear of whales eventually turned to wonder.

Gregg Wallace goes to a historic factory in Germany that produces 600,000 pencils a day; at materials intake, he is astonished that the main material in a pencil is not lead but graphite; he helps mix this with clay to produce a 250-kilo batch.

The anticipation of the annual Great Migration is being felt by all of the Serengeti's families as they wait with great desperation for it to arrive; the land continues to get hotter and hunger starts to bite as food becomes even more scarce.

The surprising similarities humans share with whales; Steve goes on an underwater expedition to learn about singing humpbacks, matriarchal sperm whales and playful dolphins and examines how humans early fear of whales eventually turned to wonder.

Gregg Wallace goes to a historic factory in Germany that produces 600,000 pencils a day; at materials intake, he is astonished that the main material in a pencil is not lead but graphite; he helps mix this with clay to produce a 250-kilo batch.

Gregg Wallace follows 27 tons of potatoes from a farm in Hampshire, England, through the largest crisp factory on Earth, as they are peeled, sliced and fried to make more than five million packets of crisps every 24 hours.

Borneo is the richest rainforest island of all; home to 40,000 species of plants and animals, 6,000 of them are unique, and more are discovered almost daily.

Dr. Helen Czerski reveals how the harnessing of heat's power to transform matter has led to some of humanity's greatest achievements, from molten metal that enabled us to make tools to the searing heat of plasmas that offer near unlimited power.

Spy creatures reveal an ocean full of intelligence and ways of thinking, including large-brained whales, smart octopi, diving monkeys, creative fish and other intelligent animals.

A bobcat kitten needs Hope's help but this little orphan causes big headaches.

Navigating the historic Potomac River from West Virginia to Chesapeake Bay, passing through Washington, D.C. and the national monuments and ending at George Washington's Mount Vernon estate.

A Turkish drought reveals a long-lost ancient Basilica and its secrets; a church spire punches through the surface of a toxic sludge in Romania; the hull of a massive ship in the North Sea answers decades old questions.

Hope Swinimer rescues, rehabilitates and releases thousands of animals while struggling to make ends meet.

Discover the stories of six epic river journeys via the fascinating characters who live and work on and around the water.

Nubian pyramids reveal the rise of female power in Ancient Kush; a shocking satellite image uncovers secrets of an ancient ancestral Puebloan site in New Mexico.

Scientists explore whether Earth's estranged twin Venus could be a vision of our planet's future.

Some of the world's greatest scientists devise scenarios for destroying Earth.

Focusing on faraway landscapes that are bursting with fire and ice; Professor Cox goes on a journey across the solar system for a look at volcanic eruptions so vast they reach into space; learning why these violent explosions hold the keys to life.

Wandering in the spaces between and beyond the planets, where countless worlds exist without any light at all; peeking inside hidden realms that stretch halfway to the nearest star and find out what lies outside the reaches of the most powerful telescopes.

Exploring powerful lightning, mountains with strange, metallic frosts and monsoon rains on a moon that is a billion miles away from Earth.

Professor Brian Cox explores the solar system's frozen worlds; he meets the dwarf planet where mountains of solid ice float across the surface, the black and white moon painted with frost and a world illuminated by a strange form of ice.

Brian journeys across the solar system and explores its weirdest worlds, the misfits and oddballs; he discovers the forces that sculpted bizarre features and strange phenomena.

Meeting the scientists, entrepreneurs, and tech wizards at the heart of the global metamorphosis of 5G; learning how blazing-fast wireless connections will transform home and work; getting a peek at futuristic devices and services.

The cubs' mother loses patience as they learn to hunt on their own.

The secretive lives of mountain animals; snow leopards come together to help a mother and cub, trapped between rival males.

When Earth first formed from clouds of dust and gas 4.6 billion years ago, it was devoid of an atmosphere, an inhospitable rock floating in the black void of space.

The cubs' mother loses patience as they learn to hunt on their own.

The secretive lives of mountain animals; snow leopards come together to help a mother and cub, trapped between rival males.

When Earth first formed from clouds of dust and gas 4.6 billion years ago, it was devoid of an atmosphere, an inhospitable rock floating in the black void of space.

Gregg follows the journey of 27 tons of dried haricot beans from North America to the largest bean factory in the world.

The Namib Desert is one of the oldest deserts of all; it's also one of the most diverse; with 50-degree temperatures and half a millimetre of rainfall annually.

Meeting the scientists, entrepreneurs, and tech wizards at the heart of the global metamorphosis of 5G; learning how blazing-fast wireless connections will transform home and work; getting a peek at futuristic devices and services.

From dolphins to cuttlefish, ocean animals possess emotions and behavior similar to humans, including the capacity to love, grieve, deceive and invent.

Preparations for Hope's open house are derailed when a patient goes missing; the event may be too successful for its own good.

Meandering through the black waters of a primordial river immortalized in a folk song.

Strange markings in the remote reaches of Northern Finland; drones find a Manhattan-sized mystery in the depths of a Vietnamese cave; secrets are no longer hidden in the Antarctic; a lost sky-high world in Mozambique gets a visit from above.

A moose on the loose raises a ruckus; a permanent resident becomes a lovable nuisance.

The best kept secrets of Nova Scotia.

Drones reveal what's left of Henry Ford's American suburb in the Brazilian jungle; clues to what killed a once-vibrant Pennsylvania mining town; an aerial glimpse of New York's forgotten ghost town; an Italian Renaissance reduced to dust.

Hannah gains access to a top-secret site where anonymous staff and the latest tech work to make the British passport one of the most secure documents on the planet; she reveals the World War I spy craft hidden in the pages of every passport.

Hannah takes a look at the vacuum cleaner; she goes behind the scenes with Dyson and discovers how the motor in their latest vacuum spins nine times faster than that of a Formula One race car.

With over six billion of them across the planet, smartphones have changed the modern world; with rare access to electronics giant Samsung, Hannah uncovers the technological game changers that have made the smartphone a reality.

Hannah Fry discovers the hidden WWII radar technology that heats up baked beans; she learns the legend of the melted candy bar in an engineer's pocket that kick-started a kitchen revolution; she demonstrates why microwaves zap food but not people.

Headphones are worn by over 30 million people in the UK; Hannah Fry visits legendary headphone honchos Bose to find out how today's teeny earbud tech works and meets the human testers with golden ears.

Hannah goes behind the scenes to look at the technology behind the lift; along the way, she finds out how coal mines made lifts safer, gets to grips with a piece of medieval siege technology, and discovers how a PR stunt changed the modern skyline.

Scientists uncover clues at a fossil dig site in North Dakota that reveal details about the day an asteroid struck Earth and wiped out the dinosaurs.

Exploring fossils from a North Dakota site that may reveal what happened when an asteroid struck Earth and wiped out the dinosaurs.

In the Philippines, the Taal volcano violently erupts; a snowboarder in Utah rescues himself from a snowy mountain; in the Grand Canyon, mud and rocks barrel down on a group of tourists.

Alaskans power through the dog days of summer.

As the sun fades across the land, Alaskans brace for Dark Winter's return.

In the Philippines, the Taal volcano violently erupts; a snowboarder in Utah rescues himself from a snowy mountain; in the Grand Canyon, mud and rocks barrel down on a group of tourists.

Alaskans power through the dog days of summer.

As the sun fades across the land, Alaskans brace for Dark Winter's return.

Gregg Wallace explores the largest bicycle factory in Britain, which produces 150 folding bicycles every 24 hours, and joins a multi-stage manual production line to make his very own bike.

At the very end of East Africa's Great Rift Valley, there's a "land that time forgot" ; the rolling grasslands of the Luangwa Valley.

The remarkable story of how the Hubble Space Telescope has revealed the awe and wonder of our universe.

Uncovering surprising undersea relationships and connections as sharks befriend fish and whales play with dolphins.

The mercury drops, but things heat up for Hope; an elusive creature is caught on tape; an impaled gull inspires a dramatic rescue.

Nova Scotia's Southern coast.

As seen from space, a crater in Turkmenistan, is on fire; drones reveal perfect circles in the Namibian desert; A puzzle is solved by a World War 2 code breaker; Mystery of Death Valley's self-moving stones; Utah's strange electric blue ponds.

Hope revisits a completely rebuilt rehab and reveals new plans; Hope and Barry discover a problem plaguing massive marine mammals.

The Eastern Coastline is a living historical record of the battle between the French and English.

A remote island linked to one of the world's most famous aviation mysteries; thousands of shipwrecks in the Bermuda triangle; a history lost and found in the South Pacific; a 10,000-year-old mystery in the murky depths of the Yucatan Peninsula.

Exploring the worst mass extinction the planet has ever seen, when as much as 90% of all species died 252 million years ago; this moment in Earth's history took life to the brink, wreaking havoc and destruction on an unprecedented scale.

Earth's journey into the deep freeze starts with fire over 800 million years ago when long before the age of the dinosaurs, before there was even animal life, the giant supercontinent Rodinia breaks up.

The story of how plant life turned Earth from a barren rock into a vibrant green world; a four-billion year saga of highs and lows that almost wiped out all life on the planet.

When Earth first formed from clouds of dust and gas 4.6 billion years ago, it was devoid of an atmosphere, an inhospitable rock floating in the black void of space.

How dramatic twists in Earth's story enabled humans to go from being part of nature to controlling it.

A look at Isaac Newton;a visit to CERN.