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

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.

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

Gregg Wallace visits a factory that produces six million Jaffa Cakes every day, while Cherry Healey travels to Jaffa, a city famous for its oranges and the namesake of the irresistible cakes.

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

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.

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

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

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

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.

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.

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

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.

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

Gregg Wallace explores the Vale of Mowbray pork pie factory in Northallerton, Yorkshire, which began making pork pies in 1928; he visited the factory in May 2022, following production of their 75g snack-sized traditional pork pie.

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

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

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.

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

Gregg Wallace explores the Vale of Mowbray pork pie factory in Northallerton, Yorkshire, which began making pork pies in 1928; he visited the factory in May 2022, following production of their 75g snack-sized traditional pork pie.

Coasts are the most changeable habitats of the ocean world.

Comedians Maisie Adam and Suzi Ruffell travel to Morocco and navigate North Africa's mountain passes, canyons and dunes in the heat en route to the Sahara.

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

Alaskans stand their ground as winter brings one final barrage.

Comedians Maisie Adam and Suzi Ruffell travel to Morocco and navigate North Africa's mountain passes, canyons and dunes in the heat en route to the Sahara.

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

Alaskans stand their ground as winter brings one final barrage.

Gregg Wallace explores the Vale of Mowbray pork pie factory in Northallerton, Yorkshire, which began making pork pies in 1928; he visited the factory in May 2022, following production of their 75g snack-sized traditional pork pie.

Coasts are the most changeable habitats of the ocean world.

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

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

The Sea to Sky corridor reveals one of the west coast's most iconic landscapes.

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.

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

The Sunshine coast features world famous mountain ranges, forest landscapes and iconic towns.

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.

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

Probing the chemistry behind an essential UK treat and flip for perfect pancakes.

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

Comedians Maisie Adam and Suzi Ruffell travel to Morocco and navigate North Africa's mountain passes, canyons and dunes in the heat en route to the Sahara.

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

Alaskans stand their ground as winter brings one final barrage.

Probing the chemistry behind an essential UK treat and flip for perfect pancakes.

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

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

A look at how the planet's limited fresh water is distributed around the globe thanks to storms, and how animals manage in the driest habitats on Earth.

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.

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

A look at how the planet's limited fresh water is distributed around the globe thanks to storms, and how animals manage in the driest habitats on Earth.

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.

Probing the chemistry behind an essential UK treat and flip for perfect pancakes.

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

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.

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

An aerial view of Cape Breton Island from the Canso Causeway to the Cape Breton Highlands.

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

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

Les Stroud comes across a large patch of spring beauty while hiking in a coniferous forest; secret ingredient.

Exploring harvesting opportunities while at a remote fishing lodge in the Pacific Northwest; rainbow trout and fiddleheads.

The pyramids of Giza could be a giant map of the stars; how first responders brought hope to the survivors of Hurricane Katrina; an Indonesian volcano burns a shade of blue; a bird's eye view reveals the forgotten pleasures of America's recent past.

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.

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.

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.

Comedians Maisie Adam and Suzi Ruffell travel to Morocco and navigate North Africa's mountain passes, canyons and dunes in the heat en route to the Sahara.

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.

Zac and Darin get down and dirty as they explore a natural approach to farming through regenerative agriculture and organic food production.

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

Comedians Maisie Adam and Suzi Ruffell travel to Morocco and navigate North Africa's mountain passes, canyons and dunes in the heat en route to the Sahara.

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.

Zac and Darin get down and dirty as they explore a natural approach to farming through regenerative agriculture and organic food production.

Grey wolves and bison in Yellowstone National Park; hellbenders in North Carolina.

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.

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.

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.

Northumberland Strait.

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

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

The sitka spruce tree.

Maple trees and a sugar shack lead to maple syrup.

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.

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 four categories of cute in the animal kingdom, and the scientific stories behind why animals are cute.

In the wake of Hurricane Maria, Zac explores sustainability in Puerto Rico where he meets chef José Andrés, milks a goat and eats ceviche.

Zac and Darin get an up-close look at Iceland's renewable energy efforts; they also soak in a spa, sample reindeer meat and view natural wonders.

Zac learns about beekeeping on a New York City rooftop, then he heads to London to check out its pollution-reduction efforts, from wall gardening to trash collecting.

Before heading to Paris to learn about its tap water system, Zac joins friend Anna Kendrick for a lesson in H2O from a water sommelier in Los Angeles.

In Costa Rica, Zac and Darin try out life in a swanky eco-village committed to a small environmental footprint; they visit a wildlife refuge and enjoy a zip-lining trip.

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

Zac and Darin head to Peru to delve into potato cryopreservation, biopiracy and the sport of sandboarding.

Steve goes on a mission to learn whether the sharks of the Indian Ocean are capable of adapting to rapidly changing conditions like climate change, overfishing, and pollution.

Professor Brian Cox traces the development of the four rocky worlds closest to the sun: Mercury, Venus, Earth and Mars; born together, they battled the unbelievable violence of the early solar system to become stable planets.

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.

Steve goes on a mission to learn whether the sharks of the Indian Ocean are capable of adapting to rapidly changing conditions like climate change, overfishing, and pollution.

Professor Brian Cox traces the development of the four rocky worlds closest to the sun: Mercury, Venus, Earth and Mars; born together, they battled the unbelievable violence of the early solar system to become stable planets.

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.

Rolling down the line with a 187-ton train and touring the UK's last aluminum plant.

A look at the construction process behind the double-decker bus in Yorkshire and why they were crucial during WWI.

Gregg Wallace visits a factory that produces six million Jaffa Cakes every day, while Cherry Healey travels to Jaffa, a city famous for its oranges and the namesake of the irresistible cakes.

Gregg Wallace explores the Vale of Mowbray pork pie factory in Northallerton, Yorkshire, which began making pork pies in 1928; he visited the factory in May 2022, following production of their 75g snack-sized traditional pork pie.

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

Exploring offshore islands, inland volcanoes and forgotten World War II defense fortifications north of Powell River.

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.

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

BC's inland waterways.

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.

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

Wallace visits a Yorkshire team that churns out up to 90,000 vegan sausages a day; Cherry Healey discovers how Canadian soybeans are transformed into protein-packed tofu.

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

Paddy McGuinness and Cherry Healey hit factory floors across Britain for a snoop around their supersized production lines to reveal what the secrets are behind supermarket staples.

Steve goes on a mission to learn whether the sharks of the Indian Ocean are capable of adapting to rapidly changing conditions like climate change, overfishing, and pollution.

Professor Brian Cox traces the development of the four rocky worlds closest to the sun: Mercury, Venus, Earth and Mars; born together, they battled the unbelievable violence of the early solar system to become stable planets.

Wallace visits a Yorkshire team that churns out up to 90,000 vegan sausages a day; Cherry Healey discovers how Canadian soybeans are transformed into protein-packed tofu.

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

Along the coastline, Zac and Darin take a deep dive into the coral reef restoration techniques supporting a vast underwater ecosystem.

The incredible story of how Pluto has been propelled from an unremarkable ball of ice on the edge of the solar system to a world of unimaginable complexity; one where some form of alien life might even exist.

There are not five separate oceans, but one; its waters linked by powerful forces that keep them on the move.

Along the coastline, Zac and Darin take a deep dive into the coral reef restoration techniques supporting a vast underwater ecosystem.

The incredible story of how Pluto has been propelled from an unremarkable ball of ice on the edge of the solar system to a world of unimaginable complexity; one where some form of alien life might even exist.

There are not five separate oceans, but one; its waters linked by powerful forces that keep them on the move.

Wallace visits a Yorkshire team that churns out up to 90,000 vegan sausages a day; Cherry Healey discovers how Canadian soybeans are transformed into protein-packed tofu.

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

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.

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

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

An epic, high-altitude journey from Seven Sisters Provincial Park to Salmon Glacier.

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

An epic, high-altitude journey from Seven Sisters Provincial Park to Salmon Glacier.

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.

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.

Gregg Wallace explores an Ambrosia factory that makes up to 360,000 rice puddings daily; Cherry Healey finds out how Alps fresh water is used to grow over a million tonnes of rice annually.

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

Along the coastline, Zac and Darin take a deep dive into the coral reef restoration techniques supporting a vast underwater ecosystem.

The incredible story of how Pluto has been propelled from an unremarkable ball of ice on the edge of the solar system to a world of unimaginable complexity; one where some form of alien life might even exist.

There are not five separate oceans, but one; its waters linked by powerful forces that keep them on the move.

Gregg Wallace explores an Ambrosia factory that makes up to 360,000 rice puddings daily; Cherry Healey finds out how Alps fresh water is used to grow over a million tonnes of rice annually.

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

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.

Survivors from one of the deadliest fires in U.S. history share the stories of their escape from the horrific inferno.

Paddy McGuinness and Cherry Healey hit factory floors across Britain for a snoop around their supersized production lines to reveal what the secrets are behind supermarket staples.

Paddy McGuinness and Cherry Healey hit factory floors across Britain for a snoop around their supersized production lines to reveal what the secrets are behind supermarket staples.

Paddy McGuinness and Cherry Healey hit factory floors across Britain for a snoop around their supersized production lines to reveal what the secrets are behind supermarket staples.

Paddy McGuinness and Cherry Healey hit factory floors across Britain for a snoop around their supersized production lines to reveal what the secrets are behind supermarket staples.

Paddy McGuinness and Cherry Healey hit factory floors across Britain for a snoop around their supersized production lines to reveal what the secrets are behind supermarket staples.

An exclusive tour through England's Woodmansterne card factory reveals how the company mass-produces five million Christmas cards over seven weeks.

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.

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.

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

The creation legends of Naikoon Provincial Park; rich sea lion colonies; remote lighthouses.

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.

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

A cultural and geological past told through the stunning landscape of Gwaii Haanas National Park Reserve.

The differences between the Northern and Southern Rockies.

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.

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

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.

An exclusive tour through England's Woodmansterne card factory reveals how the company mass-produces five million Christmas cards over seven weeks.

Paddy McGuinness and Cherry Healey hit factory floors across Britain for a snoop around their supersized production lines to reveal what the secrets are behind supermarket staples.

Paddy McGuinness and Cherry Healey hit factory floors across Britain for a snoop around their supersized production lines to reveal what the secrets are behind supermarket staples.

Paddy McGuinness and Cherry Healey hit factory floors across Britain for a snoop around their supersized production lines to reveal what the secrets are behind supermarket staples.

Paddy McGuinness and Cherry Healey hit factory floors across Britain for a snoop around their supersized production lines to reveal what the secrets are behind supermarket staples.

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

David Attenborough explores how the threat of extinction for millions of species may lead to problems with food and water security, the ability to control the climate, and a greater risk of pandemic diseases.

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.

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

David Attenborough explores how the threat of extinction for millions of species may lead to problems with food and water security, the ability to control the climate, and a greater risk of pandemic diseases.

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

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.

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.

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.

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

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

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

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

Paddy McGuinness and Cherry Healey hit factory floors across Britain for a snoop around their supersized production lines to reveal what the secrets are behind supermarket staples.

Sir David Attenborough explores the dangerous frontiers created by the world's coasts, where animals fight for survival amid constant change; there are some unexpected residents on Namibia's Skeleton Coast.

Sir David Attenborough reveals new animal behaviors in the ocean.

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.

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

Exploring forests as hidden worlds where the lives of animals are entwined, including temperate forests home to whistling wild dogs, as well as rainforests where ninja treehoppers fight off assassin bugs.

Animals fight to survive extremes, from tundra to deserts, mountain summits to deep underground.

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.

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.

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

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.

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.

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

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

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

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

The vast and diverse terrain that lies at the border of Canada and the United States.

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.