Brian learns how Saturn began its life as a strange planet of rock and ice, born outside the snow line, with an abundance of building materials.

Professor Brian Cox explores how the universe began and how it will end.

Gregg Wallace visits a huge vacuum cleaner factory in the heart of Somerset. This 32-acre site is a hive of activity where 1.2 million vacuums are made every year. Gregg is following their biggest seller, the Henry vacuum cleaner in bright red.

Tapping into Gregg's childhood passion and watching an Alstom electric train roll down the production line; visiting the U.K.'s last aluminum-smelting plant with Cherry; exploring the legacy of an antique electrified rail line in Brighton with Ruth.

A journey from the heat of the tropics to the planet's frozen poles; life has spread to almost every part of the ocean, but there are many different worlds within it and each presents unique challenges.

An epic journey into the unknown, a realm that feels almost like science fiction.

A collection of scenic towns, parks and coastal rainforest unique in the world.

All crews race toward the end of the season on March 31, desperate to make quota before they're forced off the ice; emotions run high as the Kristjanson crew surveys the damage and recovers what's left of Trevor's narrow gauge bomber.

Shipwrecks in the Caribbean become artificial reefs that support marine life.

Hubble's Canvas reveals the masterpieces that abound in the universe.

"Hubble's Canvas" reveals the masterpieces that abound in the universe.

Examine strange relics forgotten by time. Visit a perturbing circle of stone in the Golan Heights, a mountain of headless statues in Turkey, a castle left to crumble in the Saudi Arabian desert, and a time-worn secret in the wilds of Peru.

Griff explores the prairies and vast plains of Saskatchewan and Alberta provinces; he discovers that they hide a diversity of riches, from ancient buffalo herds to dinosaur fossils and acres of cultivated farmland.

South America's supreme predator, jaguars are also one of the most elusive animals on the planet; a pioneering team in Brazil track individual wild jaguars to gain amazing insight into their lives.

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.

An epic journey into the unknown, a realm that feels almost like science fiction.

Gregg Wallace lends a hand unloading a tanker of sugar, and follows its path through a factory to learn how the workers transform it into sweets.

Many passionate people are dedicated to saving the wild animals of Asia; these individuals and their ingenious solutions give hope and optimism for the future of the continent.

David Attenborough joins a team of researchers in their efforts to discover the secrets of a 200-million-year-old giant sea dragon fossil.

Brian takes a fresh look at the astonishing concept of gravity.

Travel to places where migratory whales feed, breed, and raise their young despite imminent danger; Swim thousands of miles for a once-in-a-lifetime encounter with a southern right whale that's about to give birth, then meet a curious humpback calf.

David Attenborough joins a team of researchers in their efforts to discover the secrets of a 200-million-year-old giant sea dragon fossil.

Brian takes a fresh look at the astonishing concept of gravity.

Travel to places where migratory whales feed, breed, and raise their young despite imminent danger; Swim thousands of miles for a once-in-a-lifetime encounter with a southern right whale that's about to give birth, then meet a curious humpback calf.

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.

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.

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.

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.

BC's lower mainland is a mix of remote mountain ranges, spectacular cityscapes and marine life.

The waters near the Florida Keys are home to as many as 1,000 shipwrecks.

Cinematic shipwrecks of the Bahamas.

Hubble's Canvas reveals the masterpieces that abound in the universe.

Hubble's Canvas reveals the masterpieces that abound in the universe.

Confront objects that make no sense; spot a spinning island in an Argentinian marsh, a colossal triangle stuck in the Arizona desert, mysterious multicoloured pools across northern Ethiopia and a huge human figure hidden in the Australian outback.

Griff uncovers what it is about living in the Pacific Northwest that makes people strive for happiness and what he learned on his journey across Canada.

Alaskans rediscover old practices to get through the heart of winter.

A visit to the Doritos factory in England reveals the processes and machinery that go into creating Chilli Heatwave tortilla chips.

Gregg Wallace visits the Denby factory in Derbyshire, which has been making pottery since 1809. Brits drink a staggering 195 million mugs of tea and coffee every day, so Gregg is following production of one of the factory's best sellers.

Gregg visits a factory that churns out fifty thousand litres of dairy ice cream every day, while Cherry Healey enlists an ice hockey team to test the best methods of stopping brain freeze.

Gregg Wallace visits a huge vacuum cleaner factory in the heart of Somerset. This 32-acre site is a hive of activity where 1.2 million vacuums are made every year. Gregg is following their biggest seller, the Henry vacuum cleaner in bright red.

Tapping into Gregg's childhood passion and watching an Alstom electric train roll down the production line; visiting the U.K.'s last aluminum-smelting plant with Cherry; exploring the legacy of an antique electrified rail line in Brighton with Ruth.

In Guyana South America Steve searches for the harpy eagle, but stumbles upon an agitated snake.

Steve and the team head to the Pantanal region in Brazil to search for an animal that has eluded Steve his whole life, the jaguar.

South America's supreme predator, jaguars are also one of the most elusive animals on the planet; a pioneering team in Brazil track individual wild jaguars to gain amazing insight into their lives.

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

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.

The team travels to every corner of the planet over the course of five years.

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

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.

The team travels to every corner of the planet over the course of five years.

A visit to the Doritos factory in England reveals the processes and machinery that go into creating Chilli Heatwave tortilla chips.

Gregg Wallace visits the Denby factory in Derbyshire, which has been making pottery since 1809. Brits drink a staggering 195 million mugs of tea and coffee every day, so Gregg is following production of one of the factory's best sellers.

Gregg visits a factory that churns out fifty thousand litres of dairy ice cream every day, while Cherry Healey enlists an ice hockey team to test the best methods of stopping brain freeze.

Gregg Wallace visits a huge vacuum cleaner factory in the heart of Somerset. This 32-acre site is a hive of activity where 1.2 million vacuums are made every year. Gregg is following their biggest seller, the Henry vacuum cleaner in bright red.

Hope's team build a special flight tent for a lone bat; a young porcupine arrives at the rehab; a stranded seal is rescued.

Strange aquatic mammals populating a river in Columbia; a ship marooned in a sea of sand along Namibia's notorious Skeleton Coast; a Boeing 727 jetliner hidden in a pine forest; an unusual pattern is discovered in the Nevada desert.

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.

Hope's team build a special flight tent for a lone bat; a young porcupine arrives at the rehab; a stranded seal is rescued.

Strange aquatic mammals populating a river in Columbia; a ship marooned in a sea of sand along Namibia's notorious Skeleton Coast; a Boeing 727 jetliner hidden in a pine forest; an unusual pattern is discovered in the Nevada desert.

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.

Hope's team build a special flight tent for a lone bat; a young porcupine arrives at the rehab; a stranded seal is rescued.

Alaskans enter a new dawn in the Arctic winter.

Discovering how the moon shapes life on Earth.

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

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.

Travel to places where migratory whales feed, breed, and raise their young despite imminent danger; Swim thousands of miles for a once-in-a-lifetime encounter with a southern right whale that's about to give birth, then meet a curious humpback calf.

Alaskans enter a new dawn in the Arctic winter.

Coral Reefs are vibrant undersea cities where life has found ways to survive.

From Sydney to the Greater Blue Mountains, Zach and Darin meet with leading eco-warriors to learn about protected lands and habitat conservation.

Levison begins his journey in Afghanistan's remote and inhospitable Wakhan Corridor.

Levison takes in the scenery in northern Pakistan's mountain valleys.

From Sydney to the Greater Blue Mountains, Zach and Darin meet with leading eco-warriors to learn about protected lands and habitat conservation.

Levison begins his journey in Afghanistan's remote and inhospitable Wakhan Corridor.

Levison takes in the scenery in northern Pakistan's mountain valleys.

Alaskans enter a new dawn in the Arctic winter.

Discovering how the moon shapes life on Earth.

Coral Reefs are vibrant undersea cities where life has found ways to survive.

Alaskans enter a new dawn in the Arctic winter.

A seal contracts a mysterious illness.

An enormous fiery vortex in Redding, California, the island nation of Malta loses a natural treasure, a mysterious radioactive hotspot is discovered near Chernobyl, and an unknown force lays waste to a mountain forest in Italian Alps.

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.

A seal contracts a mysterious illness.

An enormous fiery vortex in Redding, California, the island nation of Malta loses a natural treasure, a mysterious radioactive hotspot is discovered near Chernobyl, and an unknown force lays waste to a mountain forest in Italian Alps.

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.

A seal contracts a mysterious illness.

Alaska residents labor their way through winter's challenges.

Brian explores the sun's rule over every world in the solar system.

From Sydney to the Greater Blue Mountains, Zach and Darin meet with leading eco-warriors to learn about protected lands and habitat conservation.

Levison begins his journey in Afghanistan's remote and inhospitable Wakhan Corridor.

Levison takes in the scenery in northern Pakistan's mountain valleys.

Alaska residents labor their way through winter's challenges.

The big blue is the world's greatest wilderness, far from shore and many kilometers deep.

In the Falkland Islands the crew runs across rockhopper penguins and the striated caracara.

Celebrating the end of the pole-to-pole expedition with Steve Backshall and his team in Antarctica, where he dives with king penguins and has a terrifying encounter with a predator of the Southern Ocean, the leopard seal.

A Spinosaurus, the world's largest ever predatory dinosaur, struggles to bring up his babies and lead his young family across one of the deadliest environments on Earth.

Steve Backshall embarks on a mission to the steamy rainforests of Costa Rica; things get off to a breathtaking start when Steve is almost strangled by a giant boa constrictor.

While on a hunt for the mighty anaconda, Steve is attacked by an unseen predator; Steve takes a dip in piranha-infested waters; in Peru, Steve sees the giant river otter.

In the Falkland Islands the crew runs across rockhopper penguins and the striated caracara.

Celebrating the end of the pole-to-pole expedition with Steve Backshall and his team in Antarctica, where he dives with king penguins and has a terrifying encounter with a predator of the Southern Ocean, the leopard seal.

A Spinosaurus, the world's largest ever predatory dinosaur, struggles to bring up his babies and lead his young family across one of the deadliest environments on Earth.

Steve Backshall embarks on a mission to the steamy rainforests of Costa Rica; things get off to a breathtaking start when Steve is almost strangled by a giant boa constrictor.

While on a hunt for the mighty anaconda, Steve is attacked by an unseen predator; Steve takes a dip in piranha-infested waters; in Peru, Steve sees the giant river otter.

Alaska residents labor their way through winter's challenges.

Brian explores the sun's rule over every world in the solar system.

The big blue is the world's greatest wilderness, far from shore and many kilometers deep.

Alaska residents labor their way through winter's challenges.

Many fawns are in need of help.

A long-forgotten network of Native American earthworks, a baffling battlefield mystery in Belgium, a mysterious blood red lake on a remote Greek island, and an eerie pink glow emulating form the middle of the Pacific Ocean.

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.

Many fawns are in need of help.

A long-forgotten network of Native American earthworks, a baffling battlefield mystery in Belgium, a mysterious blood red lake on a remote Greek island, and an eerie pink glow emulating form the middle of the Pacific Ocean.

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.

Many fawns are in need of help.

Alaskans confront the environment and themselves as winter bears down.

How Earth's cosmic backyard emerged from chaotic clouds of gas; two extraordinary wonders on Earth.

In the Falkland Islands the crew runs across rockhopper penguins and the striated caracara.

Celebrating the end of the pole-to-pole expedition with Steve Backshall and his team in Antarctica, where he dives with king penguins and has a terrifying encounter with a predator of the Southern Ocean, the leopard seal.

A Spinosaurus, the world's largest ever predatory dinosaur, struggles to bring up his babies and lead his young family across one of the deadliest environments on Earth.

Steve Backshall embarks on a mission to the steamy rainforests of Costa Rica; things get off to a breathtaking start when Steve is almost strangled by a giant boa constrictor.

While on a hunt for the mighty anaconda, Steve is attacked by an unseen predator; Steve takes a dip in piranha-infested waters; in Peru, Steve sees the giant river otter.

Alaskans confront the environment and themselves as winter bears down.

From forests to undersea prairies, it is the green of the sea that brings life to oceans.

David Attenborough tells the story of the discovery and reconstruction in Argentina of the world's largest known dinosaur, a brand new species of titanosaur. Measuring 37m long, it now holds the record as the biggest animal ever to walk the earth.

Without volcanoes, life on Earth would never have begun; they are responsible for both the planet's breathable atmosphere and the oceans; mineral-rich ash from regular eruptions fertilize the land.

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.

David Attenborough tells the story of the discovery and reconstruction in Argentina of the world's largest known dinosaur, a brand new species of titanosaur. Measuring 37m long, it now holds the record as the biggest animal ever to walk the earth.

Without volcanoes, life on Earth would never have begun; they are responsible for both the planet's breathable atmosphere and the oceans; mineral-rich ash from regular eruptions fertilize the land.

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.

Alaskans confront the environment and themselves as winter bears down.

How Earth's cosmic backyard emerged from chaotic clouds of gas; two extraordinary wonders on Earth.

From forests to undersea prairies, it is the green of the sea that brings life to oceans.

Alaskans confront the environment and themselves as winter bears down.

Bobcats are returned to the wild.

Dive into the historical and natural secrets of the deep; explore an uninhabited concrete island, ocean spirals off the Australian coast, underwater evidence of a violent past and tracks thousands of metres below the sea's surface.

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.

Bobcats are returned to the wild.

Dive into the historical and natural secrets of the deep; explore an uninhabited concrete island, ocean spirals off the Australian coast, underwater evidence of a violent past and tracks thousands of metres below the sea's surface.

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.

Bobcats are returned to the wild.

Alaskans rediscover old practices to get through the heart of winter.

Brian reveals how the atmosphere can create most of the wonderful sights in the solar system.

David Attenborough tells the story of the discovery and reconstruction in Argentina of the world's largest known dinosaur, a brand new species of titanosaur. Measuring 37m long, it now holds the record as the biggest animal ever to walk the earth.

Without volcanoes, life on Earth would never have begun; they are responsible for both the planet's breathable atmosphere and the oceans; mineral-rich ash from regular eruptions fertilize the land.

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.

Alaskans rediscover old practices to get through the heart of winter.

A Spinosaurus, the world's largest ever predatory dinosaur, struggles to bring up his babies and lead his young family across one of the deadliest environments on Earth.

Alaskans take advantage of a brief reprieve from Dark Winter's wrath.

It's officially the third-highest snowfall in Manitoba in the last century; commercial fishers are plagued by deep drifts and hidden pockets of slush that can stop them in their tracks; Chris finds out the hard way that traveling alone is a bad idea.

Levison begins his journey in Afghanistan's remote and inhospitable Wakhan Corridor.

Alaskans take advantage of a brief reprieve from Dark Winter's wrath.

It's officially the third-highest snowfall in Manitoba in the last century; commercial fishers are plagued by deep drifts and hidden pockets of slush that can stop them in their tracks; Chris finds out the hard way that traveling alone is a bad idea.

Levison begins his journey in Afghanistan's remote and inhospitable Wakhan Corridor.

Alaskans rediscover old practices to get through the heart of winter.

Brian reveals how the atmosphere can create most of the wonderful sights in the solar system.

Alaskans take advantage of a brief reprieve from Dark Winter's wrath.

Alaskans rediscover old practices to get through the heart of winter.

Hope tries to save an injured fawn.

Revealing the truth behind the planet's ancient legends; touring an island covered in polar bears, twin craters in Greece, peeking at a supervolcano hidden under Yellowstone Park and examining an ocean formation that's eerily similar to Atlantis.

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

Hope tries to save an injured fawn.

Revealing the truth behind the planet's ancient legends; touring an island covered in polar bears, twin craters in Greece, peeking at a supervolcano hidden under Yellowstone Park and examining an ocean formation that's eerily similar to Atlantis.

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

Hope tries to save an injured fawn.

Alaskans take advantage of a brief reprieve from Dark Winter's wrath.

Brian examines the universal laws of nature; planet size can make a difference between life and death.

Alaskans take advantage of a brief reprieve from Dark Winter's wrath.

It's officially the third-highest snowfall in Manitoba in the last century; commercial fishers are plagued by deep drifts and hidden pockets of slush that can stop them in their tracks; Chris finds out the hard way that traveling alone is a bad idea.

Levison begins his journey in Afghanistan's remote and inhospitable Wakhan Corridor.

Alaskans take advantage of a brief reprieve from Dark Winter's wrath.

Coasts are the most changeable habitats of the ocean world.

Professor Brian Cox journeys to the remotest part of the solar system where the mysteries of Saturn, Uranus and Neptune remain in the shadows.

An international team of volcanologists in Iceland.

In 1989, a ferocious explosion on the sun's surface released a cloud of highly charged particles containing the energy of 20 million nuclear bombs, and this solar superstorm then hit Earth; in Quebec, Canada, the lights suddenly went out.

Professor Brian Cox journeys to the remotest part of the solar system where the mysteries of Saturn, Uranus and Neptune remain in the shadows.

An international team of volcanologists in Iceland.

In 1989, a ferocious explosion on the sun's surface released a cloud of highly charged particles containing the energy of 20 million nuclear bombs, and this solar superstorm then hit Earth; in Quebec, Canada, the lights suddenly went out.

Alaskans take advantage of a brief reprieve from Dark Winter's wrath.

Brian examines the universal laws of nature; planet size can make a difference between life and death.

Coasts are the most changeable habitats of the ocean world.

Alaskans take advantage of a brief reprieve from Dark Winter's wrath.

An island of the coast of Honduras stands out as a holiday resort hot spot, and more than just sun and sand brings the tourists in droves; divers consider the island a paradise of shipwrecks scattered from all corners of the the island to explore.

Hubble's Canvas reveals the masterpieces that abound in the universe.

After being dropped into the woods with no supplies, six Indigenous strangers learn to patch birchbark canoes.

Griff uncovers what makes Newfoundland and Labrador unique, from tiny islands, sea shanties and cods tongues to jellybean houses and noonday canons, while discovering its bigness in land, dogs and the hospitality of its people.

An island of the coast of Honduras stands out as a holiday resort hot spot, and more than just sun and sand brings the tourists in droves; divers consider the island a paradise of shipwrecks scattered from all corners of the the island to explore.

Hubble's Canvas reveals the masterpieces that abound in the universe.

After being dropped into the woods with no supplies, six Indigenous strangers learn to patch birchbark canoes.

Griff uncovers what makes Newfoundland and Labrador unique, from tiny islands, sea shanties and cods tongues to jellybean houses and noonday canons, while discovering its bigness in land, dogs and the hospitality of its people.

Professor Brian Cox journeys to the remotest part of the solar system where the mysteries of Saturn, Uranus and Neptune remain in the shadows.

David Attenborough tells the story of the discovery and reconstruction in Argentina of the world's largest known dinosaur, a brand new species of titanosaur. Measuring 37m long, it now holds the record as the biggest animal ever to walk the earth.

Coral Reefs are vibrant undersea cities where life has found ways to survive.

The big blue is the world's greatest wilderness, far from shore and many kilometers deep.

From forests to undersea prairies, it is the green of the sea that brings life to oceans.

Coasts are the most changeable habitats of the ocean world.

Steve Backshall embarks on a mission to the steamy rainforests of Costa Rica; things get off to a breathtaking start when Steve is almost strangled by a giant boa constrictor.

While on a hunt for the mighty anaconda, Steve is attacked by an unseen predator; Steve takes a dip in piranha-infested waters; in Peru, Steve sees the giant river otter.

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

A team of forensic experts excavate a giant Pliosaur skull, the largest Jurassic predator ever known.

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

Steve returns home to the Atlantic waters of the British Isles as he considers the question of what humanity can do to ensure the enduring future of whales.

A team of forensic experts excavate a giant Pliosaur skull, the largest Jurassic predator ever known.

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

Steve returns home to the Atlantic waters of the British Isles as he considers the question of what humanity can do to ensure the enduring future of whales.

A team of forensic experts excavate a giant Pliosaur skull, the largest Jurassic predator ever known.

Professor Brian Cox journeys to the remotest part of the solar system where the mysteries of Saturn, Uranus and Neptune remain in the shadows.

An international team of volcanologists in Iceland.

In 1989, a ferocious explosion on the sun's surface released a cloud of highly charged particles containing the energy of 20 million nuclear bombs, and this solar superstorm then hit Earth; in Quebec, Canada, the lights suddenly went out.

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

Gabriella and the others experience a wet, cold night; Elder Charlie demonstrates the art of starting fire; Michela's fears grow.

Caleb Musgrave teaches the Adventurers proper shelter construction.

From bagels and poutine to beavers and ice hockey, Griff Rhys Jones explores Quebec to learn how French Canada really is; he reveals how its history and diversity have helped to shape la belle province and the multicultural Canada of present times.

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

Gabriella and the others experience a wet, cold night; Elder Charlie demonstrates the art of starting fire; Michela's fears grow.

Caleb Musgrave teaches the Adventurers proper shelter construction.

From bagels and poutine to beavers and ice hockey, Griff Rhys Jones explores Quebec to learn how French Canada really is; he reveals how its history and diversity have helped to shape la belle province and the multicultural Canada of present times.

Alaskans take advantage of a brief reprieve from Dark Winter's wrath.

Professor Brian Cox journeys to the remotest part of the solar system where the mysteries of Saturn, Uranus and Neptune remain in the shadows.

An international team of volcanologists in Iceland.

Levison begins his journey in Afghanistan's remote and inhospitable Wakhan Corridor.

Levison takes in the scenery in northern Pakistan's mountain valleys.

A Spinosaurus, the world's largest ever predatory dinosaur, struggles to bring up his babies and lead his young family across one of the deadliest environments on Earth.

In the Falkland Islands the crew runs across rockhopper penguins and the striated caracara.

Celebrating the end of the pole-to-pole expedition with Steve Backshall and his team in Antarctica, where he dives with king penguins and has a terrifying encounter with a predator of the Southern Ocean, the leopard seal.

David Attenborough tells the story of the discovery and reconstruction in Argentina of the world's largest known dinosaur, a brand new species of titanosaur. Measuring 37m long, it now holds the record as the biggest animal ever to walk the earth.

Coasts are the most changeable habitats of the ocean world.

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

Without volcanoes, life on Earth would never have begun; they are responsible for both the planet's breathable atmosphere and the oceans; mineral-rich ash from regular eruptions fertilize the land.

Coasts are the most changeable habitats of the ocean world.

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

Without volcanoes, life on Earth would never have begun; they are responsible for both the planet's breathable atmosphere and the oceans; mineral-rich ash from regular eruptions fertilize the land.

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

Alaskans confront the environment and themselves as winter bears down.

Alaskans rediscover old practices to get through the heart of winter.

Alaskans take advantage of a brief reprieve from Dark Winter's wrath.

Two birds with wing injuries.

Walking among colossal wonders scattered across the Earth's surface, including an ancient reptile skeleton, a massive head carving in the Alberta badlands, a giant South African footprint and a pentagram etched into a remote peninsula in Kazakhstan.

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.

Two birds with wing injuries.

Walking among colossal wonders scattered across the Earth's surface, including an ancient reptile skeleton, a massive head carving in the Alberta badlands, a giant South African footprint and a pentagram etched into a remote peninsula in Kazakhstan.

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.

Two birds with wing injuries.

Alaskans test their will and luck against Dark Winter's obstacles.

The Trappist-1 stellar system is home to seven Earth-like planets, and one of them could harbor life; rival teams of visionary pioneers use data to extrapolate entire worlds, leading the search for life on other planets throughout the universe.

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.

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

Steve returns home to the Atlantic waters of the British Isles as he considers the question of what humanity can do to ensure the enduring future of whales.

Alaskans test their will and luck against Dark Winter's obstacles.

Pioneers strive to protect the ocean from the effects of human activity.