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

On the vast Zambian plains, a clan of hyenas must pull together to survive; the seemingly desolate territory could be the key to their success, and holding onto it until the wildebeest return will be vital for the clan's survival.

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.

Encounters from the10,000-mile, 12-country journey from the Arctic to the Antarctic.

Exploring Scandinavia's kingdoms of fire and ice and the animals - including muskoxen, polar bears and arctic foxes - who must navigate the landscape as it changes around them.

Twin fawns arrive at the centre; a volunteer searches for orphans in the woods; Hope tends to a tiny owl.

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.

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; A giant, unusual pattern is discovered in the Nevada desert.

Lynn plays surrogate to baby beavers; Zach is forced to follow a seal along the coastline; a patient returns after a release goes wrong.

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.

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.

Emperor penguins cross a dangerous frozen sea to reach their breeding grounds; rockhoppers brave stormy seas and a 300-foot cliff; tropical humboldt penguins face sea lions and vampire bats as they make their way to their desert nests.

Gregg Wallace visits the Manchester factory that produces 700,000 toilet rolls a day; he starts his journey in Sweden, where the raw material, wood, is harvested from a sustainable forest of a billion spruce trees.

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.

Indoorsy comedians Phil Wang and Pierre Novellie set their sights on Lesotho; feeling the chill as the novice adventurers navigate through mist and snow, rappel down a waterfall and slither along the serpentine Sani Pass.

As winter comes to an end, Alaskans journey, hunt, and prepare for spring.

Some tasks in the Arctic require remote Alaskans to venture off trail.

Gregg Wallace visits the Manchester factory that produces 700,000 toilet rolls a day; he starts his journey in Sweden, where the raw material, wood, is harvested from a sustainable forest of a billion spruce trees.

High in the mountains of Morocco lives a descendant of a long line of macaque rulers who has been in charge of her troupe for many winters - one of the longest recorded reigns of an alpha - but this year is likely to be her last.

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

The same 92 elements that exist on Earth can be found throughout the cosmos.

The differences between the Northern and Southern Rockies.

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

The same 92 elements that exist on Earth can be found throughout the cosmos.

The differences between the Northern and Southern Rockies.

Gregg Wallace visits the Manchester factory that produces 700,000 toilet rolls a day; he starts his journey in Sweden, where the raw material, wood, is harvested from a sustainable forest of a billion spruce trees.

High in the mountains of Morocco lives a descendant of a long line of macaque rulers who has been in charge of her troupe for many winters - one of the longest recorded reigns of an alpha - but this year is likely to be her last.

Orphaned baby rhinos in South Africa; how the deadly predators are tracked; what can be done to save the species from being poached to extinction.

Setting sail to the island of Bali, Steve and the team are out to find the elusive ocean sunfish; these deep ocean giants feed on poisonous jellyfish and ascend to the shallows for a spa session at a cleaner fish station.

Emperor penguins cross a dangerous frozen sea to reach their breeding grounds; rockhoppers brave stormy seas and a 300-foot cliff; tropical humboldt penguins face sea lions and vampire bats as they make their way to their desert nests.

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

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.

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.

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.

British comedian and travel enthusiast Griff Rhys Jones explores the prairies and vast sprawling plains of both Saskatchewan and Alberta provinces. He discovers that far from empty, they hide a diversity of riches, from ancient buffalo herds to dinosaur fossils and acres of cultivated farmland.

The North and South polar regions of the Earth; the Arctic and Antarctic are the greatest and least known wildernesses.

A mother puma must battle rivals, tackle prey nearly three times her size and endure the wild mountain weather of Patagonia in her bid to raise four cubs, her biggest litter yet.

In Amboseli, Kenya, an incredibly rare drought event pushes a struggling elephant family to its limits as their only chance to save their dynasty is to work together and overcome the challenge of a lifetime.

On Zambia's plains, a cheetah mother and her three growing daughters must travel thousands of kilometers every year to roam their vast territory searching for food; new challenges arise as the wet season arrives and floodwaters advance.

High in the mountains of Morocco lives a descendant of a long line of macaque rulers who has been in charge of her troupe for many winters - one of the longest recorded reigns of an alpha - but this year is likely to be her last.

Professional hockey player Eric LeMarque is stranded for more than seven days in an out-of-bounds region of Mammoth Mountain, CA while snowboarding; his situation goes from bad to worse when the weather turns.

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.

Indoorsy comedians Phil Wang and Pierre Novellie set their sights on Lesotho; feeling the chill as the novice adventurers navigate through mist and snow, rappel down a waterfall and slither along the serpentine Sani Pass.

Steve starts his South African adventure in one of the weirdest places he's ever gone looking for animals: a power station, in the dark. He stakes out the location for a wild cat that has so far eluded the Deadly 60, the serval.

Steve and the team head to the remote island of Isla del Plata which has the largest congregation of giant manta rays in the world. Working with one of the world's top manta scientists, Steve heads off to try and dive with these majestic giants.

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

Indoorsy comedians Phil Wang and Pierre Novellie set their sights on Lesotho; feeling the chill as the novice adventurers navigate through mist and snow, rappel down a waterfall and slither along the serpentine Sani Pass.

Steve starts his South African adventure in one of the weirdest places he's ever gone looking for animals: a power station, in the dark. He stakes out the location for a wild cat that has so far eluded the Deadly 60, the serval.

Steve and the team head to the remote island of Isla del Plata which has the largest congregation of giant manta rays in the world. Working with one of the world's top manta scientists, Steve heads off to try and dive with these majestic giants.

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

Steve goes diving with great white sharks off Guadalupe Island.

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.

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.

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.

Encounters from the10,000-mile, 12-country journey from the Arctic to the Antarctic.

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

Japan is home to two of the top five most dangerous volcanoes on the planet.

For people who live on active volcanoes, life has an element of impermanence to it.

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 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.

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.

Some tasks in the Arctic require remote Alaskans to venture off trail.

Gregg Wallace uncovers the mysteries behind fish fingers and their production, including a factory that processes 80,000 cod fish fingers a day.

Gregg Wallace is at one of the world's biggest sauce factories, located in the Netherlands; its annual output is a quarter of a million tons of condiments; in the meantime, Cherry Healey is making the glass jars Gregg needs for his mayonnaise.

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.

Alaskans push through the deep cold to increase their odds of survival.

Alaskans stand their ground as winter brings one final barrage.

Alaskans brave the awakening landscape as the end of Winter nears.

As winter comes to an end, Alaskans journey, hunt, and prepare for spring.

Steve gets a first-hand look at what makes Nile crocodiles so deadly and helps a team of scientists relocate a bunch of man-eaters.

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

Trekking across habitats where the rains determine life or death; following an ostrich chick in the fiery Namib desert; a baboon vies for a sip at a watering hole; a maned wolf in a grassy Brazilian oasis.

Steve gets a first-hand look at what makes Nile crocodiles so deadly and helps a team of scientists relocate a bunch of man-eaters.

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

Trekking across habitats where the rains determine life or death; following an ostrich chick in the fiery Namib desert; a baboon vies for a sip at a watering hole; a maned wolf in a grassy Brazilian oasis.

Gregg Wallace uncovers the mysteries behind fish fingers and their production, including a factory that processes 80,000 cod fish fingers a day.

Gregg Wallace is at one of the world's biggest sauce factories, located in the Netherlands; its annual output is a quarter of a million tons of condiments; in the meantime, Cherry Healey is making the glass jars Gregg needs for his mayonnaise.

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.

Jennie and Stephanie try to save a harbour seal pup.

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.

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.

When a fawn is found stuck in thick, toxic tar, Hope assembles her entire team to wash and care for it in a desperate bid to save its life.

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.

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.

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.

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.

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

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

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

After Brian explores the bottom of the ocean, he looks to the Solar System to see if there might be other worlds that could harbor life.

A look at how gravity affects the world, and even the solar system.

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

After Brian explores the bottom of the ocean, he looks to the Solar System to see if there might be other worlds that could harbor life.

A look at how gravity affects the world, and even the solar system.

Gregg Wallace explores a factory that produces 625,000 sausages a day; Cherry is at the University of Chester getting the lowdown on getting the best from a banger; Ruth Goodman is investigating how a German bratwurst became top dog.

With food in abundance it's a time of plenty in the Serengeti, but a series of unexpected events turns families against each other and stretches relationships to breaking point.

Steve heads to the Loango National Park on the western coast of Gabon and home to some deadly predators.

Steve heads to Norway to dive with the planet's ultimate predator: the orca; he also witnesses the northern lights and gets up close to the mighty mouth of a humpback whale.

The male penguins hand over their newborns to the returning females.

Hope realizes she's not prepared to rescue animals from an oil spill, so she heads across the continent to learn from the best before disaster strikes.

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

An underwater discovery from a violent past; strange open ocean spirals off the coast of Australia; a mysterious concrete ghost island; never-seen-before tracks discovered along the seabed.

A cow winds up at Hope For Wildlife; the spring orphans are all grown up, and Hope has to decide who's ready for release.

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.

Alaskans brave the dangers of the Arctic to prepare for Dark Winters return.

Sue Aikens tracks a deadly foe in Kavik; the Hailstones embark on a traditional task ahead of the freeze; Jessie Holmes adds a vital comfort to his remote camp; Ricko Dewilde guides his youngest children through the wilderness.

Lessons are learned; personal battles are fought by Alaskans enduring winter's descent.

In this enhanced episode, Alaskans secure all loose ends before winter.

Alaskans face emotional challenges as they push through a dark winter.

Alaskans seek out vital resources amid a deep freeze.

For remote Alaskans, no task is completed easily with the harshness of winter.

Alaskans break trail and hunt for their survival during the tail end of the brutal winter.

Alaskans embrace change as winter loosens its icy grip on the Arctic.

Steve and his team travel to the pristine island of Borneo.

Steve dives in the shark capital of the world, meets hammerhead and tiger sharks nose to nose and passionately explains why sharks need friends.

Prepared with maps and supplies, Wolf Wagner and Johannes Hoentsch plan to spend the next three weeks paddling up the Hayes River, but when disaster strikes, their canoe is wrecked on an extreme set of rapids.

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.

Steve and his team travel to the pristine island of Borneo.

Steve dives in the shark capital of the world, meets hammerhead and tiger sharks nose to nose and passionately explains why sharks need friends.

Prepared with maps and supplies, Wolf Wagner and Johannes Hoentsch plan to spend the next three weeks paddling up the Hayes River, but when disaster strikes, their canoe is wrecked on an extreme set of rapids.

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.

Gregg explores the Nottinghamshire factory producing curry sauce; Cherry goes to Guntur, India, to check out their chili production.

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.

Steve starts his South African adventure in one of the weirdest places he's ever gone looking for animals: a power station, in the dark. He stakes out the location for a wild cat that has so far eluded the Deadly 60, the serval.

Steve and the team head to the remote island of Isla del Plata which has the largest congregation of giant manta rays in the world. Working with one of the world's top manta scientists, Steve heads off to try and dive with these majestic giants.

The chicks are getting more independent.

Hope opens her doors to the public.

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.

Reveal the truth behind the planet's oldest legends. Tour an island covered in polar bears, see bizarre twin craters in Greece, peek at a supervolcano hidden under Yellowstone Park, and examine an ocean formation that's eerily similar to Atlantis.

The staff steps up to release the few remaining patients, when Hope suffers a personal tragedy.

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.

As winter's edge approaches, the race is on for Alaskans to complete the last of their winter tasks before the landscape and waterways thaw.

The end of winter has arrived, and Alaskans venture out in search of survival necessities.

The women of Alaska must seize opportunities for resources during the brief arctic spring.

Alaskans emerge from a long winter and seize new opportunities to travel, hunt, and farm while facing the dangers from thawing rivers.

Ricko DeWilde and his son, Skyler, set out on a spring hunt for an Athabaskan ritual; Sue Aikens races the clock to establish a new tundra garden; the Hailstones welcome Carol back to Kiwalik camp; Andy Bassich and Denise Becker track a predator.

As the warm season continues, Alaskans contend with the annual environmental changes that shift the daily struggles and rewards of their environment.

The last few weeks of summer are upon Alaskans, bringing the need for hunting, fishing and harvesting bounty in the Arctic.

Alaskans gather food and make upgrades to their homes as the Arctic Summer wanes.

Alaskans seize the final harvests of summer before dark winter returns to the landscape.

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

Sir David Attenborough explains how freshwater is the lifeblood of planet Earth and why animals depend on it for their survival.

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.

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

Sir David Attenborough explains how freshwater is the lifeblood of planet Earth and why animals depend on it for their survival.

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.

Gregg Wallace explores an enormous factory that produces 450 tons of frozen food each day; he follows the production of frozen potato waffles, from the arrival of 25 tons of potatoes right through dispatch.

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 rainforests of Ecuador are some of the most diverse on earth. brimming with all kinds of unique and weird species that are found nowhere else, and some of the most deadly animals on earth lurking in the shadows.

Steve and the crew travel 4,000 miles to the Loango National Park in Gabon; Steve heads out into Loango's maze of rivers on a mission to try and find an animal that is critically endangered but packs a mighty punch, the western lowland gorilla.

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

The rehab is flooded with orphaned seals, with some frozen solid in ice.

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.

Hope puts everything on the line to save an orphaned black bear cub; two bobcats are ready for release, but they won't go easy.

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

As the brief Fall season dwindles, Alaskans must race to secure resources and finalize projects before the deep cold returns to reclaim the Arctic.

The North and South polar regions of the Earth; the Arctic and Antarctic are the greatest and least known wildernesses.

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

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.

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.

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.

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

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

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

The Bahamas get pounded by 200mph winds during category five Hurricane Dorian - the most intense cyclone the country has ever seen; in Arizona, flash flooding sweeps a couple away resulting in a heart-stopping rescue.

Some tasks in the Arctic require remote Alaskans to venture off trail.

Alaskans contend with the throes of the warm season in the Arctic.

The Bahamas get pounded by 200mph winds during category five Hurricane Dorian - the most intense cyclone the country has ever seen; in Arizona, flash flooding sweeps a couple away resulting in a heart-stopping rescue.

Some tasks in the Arctic require remote Alaskans to venture off trail.

Alaskans contend with the throes of the warm season in the Arctic.

Gregg Wallace visits a cherry bakewell factory where they produce 250,000 little tarts every day.

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.

Bonus footage from throughout the series, including a race with a cheetah, a cute but deadly bird, and a king cobra rescue; rare occasions when things do not go to plan.

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.

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

When a great horned owl arrives covered in oil, Doctor Sherri must put it through a terrifying, life-saving procedure; boxes of young foxes need help and attention.

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

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.

Hope's team struggles to help two rescued harp seals learn the natural behaviors they will need to survive in the wild.

The best kept secrets of Nova Scotia.

An illustration of how the Arctic springs to life after nearly seven months in total darkness.

Devon Island in Nunavut is the largest uninhabited island in the world; the icy landscape is so barren that NASA uses it to simulate conditions on Mars.

Inside the Mackenzie Delta, a transition zone of the boreal forest to the frozen tundra.

The people of Nunavik prepare for the coming winter.

Ninginganiq is so dangerous that even seasoned sailors keep away.

The Hudson Bay lowlands are critical to life in North America.

The Yukon is one of earths last true wildernesses.

It's November at Cape Tatnam, and though winter is coming to the lower Western shore of Hudson Bay, the ice, which should be forming by now is nowhere to be seen.

Extreme locales include Mount Everest's Khumbu Icefall, the Grand Canyon, and the slopes of Mount Kilimanjaro.

Discovering how the moon shapes life on Earth.

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

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

Discovering how the moon shapes life on Earth.

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

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

A day at the barbour factory shows how their weatherproof coats are waxed, stitched and riveted by a dedicated team at a rate of 650 jackets a day.

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.

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.

Wearing chainmail, Steve takes to the sea in search of a monster; Steve goes searching for the biggest wasp in the world.

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

A rich mix of coastal towns, islands, inland mountains and seascapes from Nanaimo to Campbell River.

Hammerheads, Galapagos sharks, rays, and other species populate the waters of Cocos Island.

Stunning underwater video taken from the wildest expeditions of the world's greatest dive shops highlight the ocean's most spectacular species.

Revealing the masterpieces that about in the universe.

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

An analysis of the secrets of long-lost human settlements, a mysterious Norwegian mound, pre-historic stone circle on the banks of the Tagus River, lost city in the cradle of civilization and more.

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.

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.

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.

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.

The chicks are getting more independent.

The male penguins hand over their newborns to the returning females.

Emperor penguins cross a dangerous frozen sea to reach their breeding grounds; rockhoppers brave stormy seas and a 300-foot cliff; tropical humboldt penguins face sea lions and vampire bats as they make their way to their desert nests.

Actor Stephen Mangan and comedian Lara Ricote track their progress across Australia as they do their best to survive croc-infested waters, rickety makeshift bridges and an oopsie with a cliff.

Steve and his team travel to the pristine island of Borneo.

Steve dives in the shark capital of the world, meets hammerhead and tiger sharks nose to nose and passionately explains why sharks need friends.

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

Actor Stephen Mangan and comedian Lara Ricote track their progress across Australia as they do their best to survive croc-infested waters, rickety makeshift bridges and an oopsie with a cliff.

Steve and his team travel to the pristine island of Borneo.

Steve dives in the shark capital of the world, meets hammerhead and tiger sharks nose to nose and passionately explains why sharks need friends.

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

Steve heads to the Loango National Park on the western coast of Gabon and home to some deadly predators.

Steve heads to Norway to dive with the planet's ultimate predator: the orca; he also witnesses the northern lights and gets up close to the mighty mouth of a humpback whale.

Steve starts his South African adventure in one of the weirdest places he's ever gone looking for animals: a power station, in the dark. He stakes out the location for a wild cat that has so far eluded the Deadly 60, the serval.

Steve and the team head to the remote island of Isla del Plata which has the largest congregation of giant manta rays in the world. Working with one of the world's top manta scientists, Steve heads off to try and dive with these majestic giants.

The rainforests of Ecuador are some of the most diverse on earth. brimming with all kinds of unique and weird species that are found nowhere else, and some of the most deadly animals on earth lurking in the shadows.

Steve and the crew travel 4,000 miles to the Loango National Park in Gabon; Steve heads out into Loango's maze of rivers on a mission to try and find an animal that is critically endangered but packs a mighty punch, the western lowland gorilla.

Bonus footage from throughout the series, including a race with a cheetah, a cute but deadly bird, and a king cobra rescue; rare occasions when things do not go to plan.

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.

From scenic Telegraph Cove, around Cape Scott Provincial Park, and beyond.

The Bahamas are surrounded by coral reefs and underwater caves with sharks, turtles, and dolphins.

Clear waters, deep reefs, and dangerous caves.

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

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

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.

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.

With less than a month left in the fishing season, all crews are desperate to catch their remaining quota, and failing to do so means leaving money on the table; Justin and Mike are fighting to hit their target.

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.

A giant crack in the ice continues to be an obstacle for all crews as they try to set nets in deeper water; Mike and Justin are caught flat-footed when the crack shifts and sends a violent ice quake to shake their location.

It's January, and the Ice Vikings confront blizzards and bone-crushing cold on a lake that refuses to freeze solid; Trevor is having a terrible season, and he joins Chris at their basecamp near the Narrows, which leads to tension.

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.

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.

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.