In the aftermath of a devastating bushfire season, Zac and Darin learn about efforts to rehabilitate the wildlife and livestock population.

Levison and Alberto travel through Guatemala, Honduras and Nicaragua.

Levison Wood travels through Armenia and Europe's forgotten warzone Nagorno-Karabakh.

An all-access tour of the Ginsters bakery in Cornwall reveals the many steps and strict rules to mass-producing a popular British treat, the Cornish pasty.

Many of the products we use every day travel through dozens of machines. This series whisks us inside some of the world's largest factories to give us an inside peek at what exactly goes into mass-manufacturing our favorite items.

The long-awaited arrival of the Great Migration brings opportunities and food in abundance, but it also increases conflict as every one of the Serengeti's families is put to the test.

The dry season is now upon the animals of the Serengeti, turning the waterhole into a death trap for the herds, but for some this season is a gift.

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.

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

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.

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.

When seen from above, the pyramids of Giza align with the stars; survivors of Katrina find rescue when least expected; a volcano burns bright blue; a forgotten beach reveals its secrets.

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.

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.

Stir up some production-line excitement with Gregg at a Wigan soup factory; check out a 27.4 metre tall pressure cooker, discover why frozen veg are sometimes more nutritious than fresh with Cherry, and cook up a 17th century recipe with Ruth.

During the gold rush, prospectors from all over flock to the Klondike to try their hand at finding their fortune; Brett and Cliff build a rudimentary riverboat to float to the prime gold-panning locations.

In the aftermath of a devastating bushfire season, Zac and Darin learn about efforts to rehabilitate the wildlife and livestock population.

Levison and Alberto travel through Guatemala, Honduras and Nicaragua.

Levison Wood travels through Armenia and Europe's forgotten warzone Nagorno-Karabakh.

Stir up some production-line excitement with Gregg at a Wigan soup factory; check out a 27.4 metre tall pressure cooker, discover why frozen veg are sometimes more nutritious than fresh with Cherry, and cook up a 17th century recipe with Ruth.

The dry season is now upon the animals of the Serengeti, turning the waterhole into a death trap for the herds, but for some this season is a gift.

Steve travels to Tornado Alley, Texas; Steve goes fishing for an alligator gar, the largest fresh water fish in North America.

Steve goes diving with great white sharks off Guadalupe Island.

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

Steve travels to Tornado Alley, Texas; Steve goes fishing for an alligator gar, the largest fresh water fish in North America.

Steve goes diving with great white sharks off Guadalupe Island.

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

From a baby whale in danger to marine iguanas battling storms, a look at how animals survive when faced with challenges of the ocean.

Behind nature's winter wonderland are some of the toughest places to survive. Hidden cameras in a new generation of Spy Creatures reveal the fascinating behaviors of animals from penguins to parrots, polar bears to otters, wallabies, and wombats.

Brett and Cliff travel north to the Yukon to try their hand at logging; they aim to find a suitable number of trees that can be cut down and floated to their final destination on the main river bank.

During the gold rush, prospectors from all over flock to the Klondike to try their hand at finding their fortune; Brett and Cliff build a rudimentary riverboat to float to the prime gold-panning locations.

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

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

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.

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

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.

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.

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

Gregg is in Ireland at a factory producing 450,000 bottles of cream liqueur a day; Cherry is at a plant where 85% of Ireland's bottles and jars are recycled; Ruth learns about the spiritual origins of liqueurs.

The Grand Banks off the coast of Newfoundland have been contested waters for hundreds of years, as the earliest cod fishermen build a thriving fishing industry; Brett and Cliff take on the North Atlantic as they try their hand at cod fishing.

Steve travels to Tornado Alley, Texas; Steve goes fishing for an alligator gar, the largest fresh water fish in North America.

Steve goes diving with great white sharks off Guadalupe Island.

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

Gregg is in Ireland at a factory producing 450,000 bottles of cream liqueur a day; Cherry is at a plant where 85% of Ireland's bottles and jars are recycled; Ruth learns about the spiritual origins of liqueurs.

In the planet's most densely populated continent, animals live at extremely close quarters with people, from tigers making a home in town to elephants stopping traffic for food.

David Attenborough reveals how the unique and bizarre wildlife of the Galápagos Islands is adapting to a human revolution.

Questions about how animals adapt to the worlds built by the planet's most invasive species, humans; a search for loot to steal with macaques in Bali; hunting for easy eats with bears in Lake Tahoe; whale poo help fish populations bounce back.

People surviving in the high Himalaya, the Canadian Arctic, and the blistering Australian outback.

David Attenborough reveals how the unique and bizarre wildlife of the Galápagos Islands is adapting to a human revolution.

Questions about how animals adapt to the worlds built by the planet's most invasive species, humans; a search for loot to steal with macaques in Bali; hunting for easy eats with bears in Lake Tahoe; whale poo help fish populations bounce back.

People surviving in the high Himalaya, the Canadian Arctic, and the blistering Australian outback.

It's time to close another chapter in the lives of the animals of the Serengeti; first, all around is a blackened wasteland, the aftermath of the huge fire.

After being raised on the ice in winter, emperor penguin chicks find themselves abandoned by their parents in spring; to survive, they must find their own way across the treacherous sea ice to the rich waters of the Southern Ocean.

Stir up some production-line excitement with Gregg at a Wigan soup factory; check out a 27.4 metre tall pressure cooker, discover why frozen veg are sometimes more nutritious than fresh with Cherry, and cook up a 17th century recipe with Ruth.

Gregg is in Ireland at a factory producing 450,000 bottles of cream liqueur a day; Cherry is at a plant where 85% of Ireland's bottles and jars are recycled; Ruth learns about the spiritual origins of liqueurs.

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

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

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.

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.

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.

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.

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.

Gregg Wallace is in Essex, at a cereal bar factory which produces 400,000 fruit and nut packed treats a day; Gregg follows production from the arrival of two tonnes of macadamia nuts all the way through to dispatch.

During prohibition, men would regularly risk their lives to transport the goods; with the Great Lakes as the backdrop for this endeavour many men were lost; Brett and Cliff try their hands at bootlegging.

David Attenborough reveals how the unique and bizarre wildlife of the Galápagos Islands is adapting to a human revolution.

Questions about how animals adapt to the worlds built by the planet's most invasive species, humans; a search for loot to steal with macaques in Bali; hunting for easy eats with bears in Lake Tahoe; whale poo help fish populations bounce back.

People surviving in the high Himalaya, the Canadian Arctic, and the blistering Australian outback.

Gregg Wallace is in Essex, at a cereal bar factory which produces 400,000 fruit and nut packed treats a day; Gregg follows production from the arrival of two tonnes of macadamia nuts all the way through to dispatch.

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

Alaska residents labor their way through winter's challenges.

Frightening ice conditions and poor weather make the early season treacherous; Justin and Mike experience a violent ice-quake that leaves them rattled; Trevor contends with other fishermen setting their nets too close to his.

In Australia, the worst bushfires in recent history attack multiple towns - overwhelming firefighters and trapping tourists; The Philippines is usually resilient to natural disasters, but a 6.4 magnitude earthquake catches everyone off-guard.

Alaska residents labor their way through winter's challenges.

Frightening ice conditions and poor weather make the early season treacherous; Justin and Mike experience a violent ice-quake that leaves them rattled; Trevor contends with other fishermen setting their nets too close to his.

In Australia, the worst bushfires in recent history attack multiple towns - overwhelming firefighters and trapping tourists; The Philippines is usually resilient to natural disasters, but a 6.4 magnitude earthquake catches everyone off-guard.

The Grand Banks off the coast of Newfoundland have been contested waters for hundreds of years, as the earliest cod fishermen build a thriving fishing industry; Brett and Cliff take on the North Atlantic as they try their hand at cod fishing.

During prohibition, men would regularly risk their lives to transport the goods; with the Great Lakes as the backdrop for this endeavour many men were lost; Brett and Cliff try their hands at bootlegging.

Exploring animal emotion in all its forms, from the love and devotion of an elephant family, to dancing birds of paradise and flirting polar bears.

Tools, medicine and drugs can all be found in animal societies, including chimps that throw stones and hunt with spears, elephants that use branches as fly swatters, and lemurs that get intoxicated on the secretions of millipedes.

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

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

The St. Lawrence River is one that forged North America, allowing ships to traverse the continent; the adventure begins in Canada's first capital city of Kingston and near Canada's second largest city of Montreal.

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.

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.

Traipsing along ancient pathways criss-crossing Easter Island; finding gigantic designs carved into Asia's Eastern Steppe; ascending a tall pyramid rising from Antarctica's icy landscape.

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.

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.

As pioneers settled North America, many ventured to find their own piece of paradise in the remote wilderness; homesteaders aim was to build a home for their families to grow and flourish; Brett and Cliff are determined they have what it takes.

Alaska residents labor their way through winter's challenges.

Frightening ice conditions and poor weather make the early season treacherous; Justin and Mike experience a violent ice-quake that leaves them rattled; Trevor contends with other fishermen setting their nets too close to his.

In Australia, the worst bushfires in recent history attack multiple towns - overwhelming firefighters and trapping tourists; The Philippines is usually resilient to natural disasters, but a 6.4 magnitude earthquake catches everyone off-guard.

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.

At the top of the planet lies the Arctic Ocean; after four months of winter darkness, the sun returns to reveal a frozen ocean covered in ice; mother polar bears emerge from their hillside dens and lead their cubs down to the sea ice to hunt.

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

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.

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

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.

Gregg Wallace is in Essex, at a cereal bar factory which produces 400,000 fruit and nut packed treats a day; Gregg follows production from the arrival of two tonnes of macadamia nuts all the way through to dispatch.

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.

At the top of the planet lies the Arctic Ocean; after four months of winter darkness, the sun returns to reveal a frozen ocean covered in ice; mother polar bears emerge from their hillside dens and lead their cubs down to the sea ice to hunt.

Found on every continent, mountains create unique frozen worlds, home to extraordinary animals that must overcome the crushing conditions of the cold.

From St. John's heading north, the coastline is a maze of bays and inlets.

Many species survive by living in groups.

While some fishers struggle to finish the fall season in wild weather, the Kristjansons make a pilgrimage to their ancestral home, Iceland; back home, an early winter storm slams Gimli and commercial fishers risk life and limb.

There's a new employee at Rocky Rapids Vet. Clinic, Dr. Dayle Poitras, a newly graduated Métis vet excited about landing her first full-time gig; Savannah is keen to mentor young Dayle while learning about what it means to be Métis.

A field trip to do a bison herd check near her Métis homelands sheds more light on who Dr. Savannah is; she dives deeper into her identity as a Métis woman.

Decoding the secrets of long-lost human settlements; scrutinizing a mysterious Norwegian mound, a prehistoric stone circle on the banks of the Tagus River, a lost city in the cradle of civilization and bizarre rock shapes.

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.

David Attenborough reveals how the unique and bizarre wildlife of the Galápagos Islands is adapting to a human revolution.

The long-awaited arrival of the Great Migration brings opportunities and food in abundance, but it also increases conflict as every one of the Serengeti's families is put to the test.

The dry season is now upon the animals of the Serengeti, turning the waterhole into a death trap for the herds, but for some this season is a gift.

It's time to close another chapter in the lives of the animals of the Serengeti; first, all around is a blackened wasteland, the aftermath of the huge fire.

After being raised on the ice in winter, emperor penguin chicks find themselves abandoned by their parents in spring; to survive, they must find their own way across the treacherous sea ice to the rich waters of the Southern Ocean.

Found on every continent, mountains create unique frozen worlds, home to extraordinary animals that must overcome the crushing conditions of the cold.

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

In the planet's most densely populated continent, animals live at extremely close quarters with people, from tigers making a home in town to elephants stopping traffic for food.

Humans are changing our planet so rapidly, it's affecting earth's life support systems: our weather, our oceans and the living world.

Brian Cox explores the fundamental properties of light; the secrets of the cosmos.

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.

Humans are changing our planet so rapidly, it's affecting earth's life support systems: our weather, our oceans and the living world.

Brian Cox explores the fundamental properties of light; the secrets of the cosmos.

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.

Brett and Cliff travel north to the Yukon to try their hand at logging; they aim to find a suitable number of trees that can be cut down and floated to their final destination on the main river bank.

During the gold rush, prospectors from all over flock to the Klondike to try their hand at finding their fortune; Brett and Cliff build a rudimentary riverboat to float to the prime gold-panning locations.

The Grand Banks off the coast of Newfoundland have been contested waters for hundreds of years, as the earliest cod fishermen build a thriving fishing industry; Brett and Cliff take on the North Atlantic as they try their hand at cod fishing.

During prohibition, men would regularly risk their lives to transport the goods; with the Great Lakes as the backdrop for this endeavour many men were lost; Brett and Cliff try their hands at bootlegging.

From the waters of Juan de Fuca Strait to Gulf Islands National Park Reserve.

Chris starts his season with a massive catch of Tullibee, only to see his happiness cut short; Justin and Mike start in Hecla and hit the motherlode; a critical fish market closes; Richard's close call on the ice.

Frightening ice conditions and poor weather make the early season treacherous; Justin and Mike experience a violent ice-quake that leaves them rattled; Trevor contends with other fishermen setting their nets too close to his.

Dr. Savannah treats a hound after the poor pup is kicked in the head by a horse; she must also race against time to treat and return an injured fawn into the wild after a cougar attacked it.

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.

Zoom in on some otherworldly sights; spot a giant glacier on the Red Planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn and take a spin around a doughnut-shaped lake in Saskatchewan.

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

Alaska residents labor their way through winter's challenges.

Many of the products we use every day travel through dozens of machines. This series whisks us inside some of the world's largest factories to give us an inside peek at what exactly goes into mass-manufacturing our favorite items.

Stir up some production-line excitement with Gregg at a Wigan soup factory; check out a 27.4 metre tall pressure cooker, discover why frozen veg are sometimes more nutritious than fresh with Cherry, and cook up a 17th century recipe with Ruth.

Gregg is in Ireland at a factory producing 450,000 bottles of cream liqueur a day; Cherry is at a plant where 85% of Ireland's bottles and jars are recycled; Ruth learns about the spiritual origins of liqueurs.

Gregg Wallace is in Essex, at a cereal bar factory which produces 400,000 fruit and nut packed treats a day; Gregg follows production from the arrival of two tonnes of macadamia nuts all the way through to dispatch.

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.

Steve travels to Tornado Alley, Texas; Steve goes fishing for an alligator gar, the largest fresh water fish in North America.

Steve goes diving with great white sharks off Guadalupe Island.

David Attenborough reveals how the unique and bizarre wildlife of the Galápagos Islands is adapting to a human revolution.

In the heart of Asia lie vast arid lands; these deserts and dry grasslands are so hostile, they push life to the limit; the animals that live here are some of the toughest on earth - they are Asia's great survivors.

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.

Questions about how animals adapt to the worlds built by the planet's most invasive species, humans; a search for loot to steal with macaques in Bali; hunting for easy eats with bears in Lake Tahoe; whale poo help fish populations bounce back.

In the heart of Asia lie vast arid lands; these deserts and dry grasslands are so hostile, they push life to the limit; the animals that live here are some of the toughest on earth - they are Asia's great survivors.

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.

Questions about how animals adapt to the worlds built by the planet's most invasive species, humans; a search for loot to steal with macaques in Bali; hunting for easy eats with bears in Lake Tahoe; whale poo help fish populations bounce back.

Many of the products we use every day travel through dozens of machines. This series whisks us inside some of the world's largest factories to give us an inside peek at what exactly goes into mass-manufacturing our favorite items.

Stir up some production-line excitement with Gregg at a Wigan soup factory; check out a 27.4 metre tall pressure cooker, discover why frozen veg are sometimes more nutritious than fresh with Cherry, and cook up a 17th century recipe with Ruth.

Gregg is in Ireland at a factory producing 450,000 bottles of cream liqueur a day; Cherry is at a plant where 85% of Ireland's bottles and jars are recycled; Ruth learns about the spiritual origins of liqueurs.

Gregg Wallace is in Essex, at a cereal bar factory which produces 400,000 fruit and nut packed treats a day; Gregg follows production from the arrival of two tonnes of macadamia nuts all the way through to dispatch.

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

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

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

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

Exploring some of the most cavernous places on the planet, including an expansive Siberian crater with no explainable origin, Greenland's bizarre black holes, an ancient forbidden well in the Yemeni desert, and a voluminous void in Antarctica.

A perfect circle carved around an ancient peak; a scary phenomenon in the Pacific; strange shapes in a Middle Eastern desert; a formation below the ocean's surface.

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

A day at the Pantherella factory in England reveals the teamwork and machine power required to produce luxury socks at an industrial scale.

Brett and Cliff aim to put themselves through the experience of losing one's ship and needing to be rescued.

In the heart of Asia lie vast arid lands; these deserts and dry grasslands are so hostile, they push life to the limit; the animals that live here are some of the toughest on earth - they are Asia's great survivors.

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.

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.

A day at the Pantherella factory in England reveals the teamwork and machine power required to produce luxury socks at an industrial scale.

Trekking across the planet's most hostile frozen zone: Antarctica; getting to know ice.

Leaders and representatives of Aboriginal communities show Zac and Darin how indigenous cultures live to protect and preserve the land.

Levison and Alberto visit the landscapes, colonial cities, active volcanoes and mountains of Nicaragua and Costa Rica.

Levison Wood travels through Armenia and Europe's forgotten warzone Nagorno-Karabakh.

Leaders and representatives of Aboriginal communities show Zac and Darin how indigenous cultures live to protect and preserve the land.

Levison and Alberto visit the landscapes, colonial cities, active volcanoes and mountains of Nicaragua and Costa Rica.

Levison Wood travels through Armenia and Europe's forgotten warzone Nagorno-Karabakh.

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.

A day at the Pantherella factory in England reveals the teamwork and machine power required to produce luxury socks at an industrial scale.

Trekking across the planet's most hostile frozen zone: Antarctica; getting to know ice.

Going back to the far North of the planet where the largest landhabitat on Earth exists, home to great Boreal forests and the barren tundra.

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

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

Revealing amazing Arctic wonders, from the towering ice fields of Eclipse Sound to the natural beauty of Sirmilik National Park.

Traveling from the northern point of Baffin Island onto the brilliant waters of Admiralty Inlet and ending up in the northern desert hamlet of Gjoa Haven.

Decoding the secrets of long-lost human settlements; scrutinizing a mysterious Norwegian mound, a prehistoric stone circle on the banks of the Tagus River, a lost city in the cradle of civilization and bizarre rock shapes.

Zoom in on some otherworldly sights; spot a giant glacier on the Red Planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn and take a spin around a doughnut-shaped lake in Saskatchewan.

Traveling from the northern point of Baffin Island onto the brilliant waters of Admiralty Inlet and ending up in the northern desert hamlet of Gjoa Haven.

Gregg Wallace visits a factory in rural Somerset that produces a million pots of yogurt every day.

Ranchers would hire cowpokes to deliver their cattle when it was time to take the animals to market; Brett and Cliff to test their mettle in the unforgiving landscape of the Southwest.

Leaders and representatives of Aboriginal communities show Zac and Darin how indigenous cultures live to protect and preserve the land.

Levison and Alberto visit the landscapes, colonial cities, active volcanoes and mountains of Nicaragua and Costa Rica.

Levison Wood travels through Armenia and Europe's forgotten warzone Nagorno-Karabakh.

Gregg Wallace visits a factory in rural Somerset that produces a million pots of yogurt every day.

Going back to the far North of the planet where the largest landhabitat on Earth exists, home to great Boreal forests and the barren tundra.

Steve and the team head to Hawaii where he comes face-to-face with an oceanic white tip shark.

In the Bahamas a tiger shark gets a little too close for comfort.

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.

Steve and the team head to Hawaii where he comes face-to-face with an oceanic white tip shark.

In the Bahamas a tiger shark gets a little too close for comfort.

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.

The Spy Creatures discover how friendships are a vital part of animal societies. Spy Wolf Cub joins a pack of arctic wolves, where a real cub's survival depends on friendships in one of the harshest environments in the world.

From delinquent meerkats to thieving penguins, animals misbehave, but they also have a surprising sense of justice.

Brett and Cliff aim to put themselves through the experience of losing one's ship and needing to be rescued.

Ranchers would hire cowpokes to deliver their cattle when it was time to take the animals to market; Brett and Cliff to test their mettle in the unforgiving landscape of the Southwest.

Hope rallies the team to release a herd of white-tailed deer; winter brings a mysterious influx of snowy owls.

Hope's first orphaned mammal arrives earlier than ever; a mysterious patient from last year returns.

Explore the Nunavut community of Gjoa Haven then head west on approach to the central Arctic hub of Cambridge Bay.

West of Cambridge Bay, examine Nunavut's remote, northern waterways, from Dease Strait, to Bathurst inlet and then finally, the open waters of Coronation Gulf, and then to Kugluktuk.

Explores strongholds abandoned by their architects; a lost city in the Amazon jungle; a desert fortress made by humanity's most notorious empire; explores a city of identical castles; examines a Greek isle's bloody history from the air.

Peek at landmarks in places where they shouldn't be; wing your way over an imperial pyramid in the Netherlands, a metal sphere in remote Russia, a lion shape carved into an English hillside and a bare swath cut through an Austrian forest.

West of Cambridge Bay, examine Nunavut's remote, northern waterways, from Dease Strait, to Bathurst inlet and then finally, the open waters of Coronation Gulf, and then to Kugluktuk.

A tour of the largest malt loaf factory in the world reveals the secrets of mass-producing the British teatime treat at a rate of half a million a day.

Scientists search for the smallest thing in our universe.

Steve and the team head to Hawaii where he comes face-to-face with an oceanic white tip shark.

In the Bahamas a tiger shark gets a little too close for comfort.

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.

A tour of the largest malt loaf factory in the world reveals the secrets of mass-producing the British teatime treat at a rate of half a million a day.

In the heart of Asia lie vast arid lands; these deserts and dry grasslands are so hostile, they push life to the limit; the animals that live here are some of the toughest on earth - they are Asia's great survivors.

David Attenborough reveals the life of the hippopotamus, an animal that cannot swim yet is utterly dependent on water, with incredible underwater footage.

Conservation advocates take risks to save wildlife by exploring remote jungles, going undercover to catch criminals and making a microlight journey to lead endangered birds to safety.

In many of the world's natural wonders there is an abundance of animals, which can either be a threat to the people who live there or provide a means of survival.

David Attenborough reveals the life of the hippopotamus, an animal that cannot swim yet is utterly dependent on water, with incredible underwater footage.

Conservation advocates take risks to save wildlife by exploring remote jungles, going undercover to catch criminals and making a microlight journey to lead endangered birds to safety.

In many of the world's natural wonders there is an abundance of animals, which can either be a threat to the people who live there or provide a means of survival.

Coming face to face with the scientists bearing witness to history's profound climate shift; pondering the effect these changes have on Earth's human and animal communities, mapping the destruction from space and learning how to save the planet.

Isolated for millions of years, Australia has a variety of unique animals, including the most dangerous bird in the world, kangaroos, wombats, koalas and predators.

Gregg Wallace visits a factory in rural Somerset that produces a million pots of yogurt every day.

A tour of the largest malt loaf factory in the world reveals the secrets of mass-producing the British teatime treat at a rate of half a million a day.

A muskrat trapped in a fence needs Hope's help and slippery patients give the team a tough time.

A baby owl needs to be reunited with its parents; a volunteer returns to the rehab in a new role; a duck rescue goes wet and wild.

The Western Nunavut region is one of the most sporadically-seen landscapes on Earth. We examine the community of Kugluktuk - Tukut Nogait National Park - and further west, the tiny hamlet of Paulatuk.

The Northern mainland coast of the Northwest Territories is a dazzling contrast in scenery - from the Smoking Hills of Bathurst peninsula - to the ethereal Tuktoyaktuk Peninsula - to the locality that shares its name.

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.

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.

The Northern mainland coast of the Northwest Territories is a dazzling contrast in scenery - from the Smoking Hills of Bathurst peninsula - to the ethereal Tuktoyaktuk Peninsula - to the locality that shares its name.

Gregg Wallace visits the Ercol factory in Buckinghamshire, an area associated with furniture making since the 19th century. Brits spend a staggering £300 million pounds each week on furniture.

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.

David Attenborough reveals the life of the hippopotamus, an animal that cannot swim yet is utterly dependent on water, with incredible underwater footage.

Conservation advocates take risks to save wildlife by exploring remote jungles, going undercover to catch criminals and making a microlight journey to lead endangered birds to safety.

In many of the world's natural wonders there is an abundance of animals, which can either be a threat to the people who live there or provide a means of survival.

Gregg Wallace visits the Ercol factory in Buckinghamshire, an area associated with furniture making since the 19th century. Brits spend a staggering £300 million pounds each week on furniture.

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.