Our frozen planet is changing. In this final episode, we meet the scientists and people dedicating their lives to understanding what these changes mean, not just for the animals and people who live there, but for the world as a whole.
Our journey begins in the Arctic, where every summer huge quantities of ice calve from the edges of Greenland’s melting glaciers. On top of the ice cap itself, glaciologist Alun Hubbard descends into a moulin to try to understand the mechanisms that are driving this historic loss of ice.
Elsewhere in the Arctic, it’s not just land ice that is disappearing. In the Gulf of St Lawrence, Canada, biologists are trying to find out how the loss of sea ice will impact the lives of baby harps. In Arctic Russia, with the loss of summer sea ice, more and more polar bears are arriving on the island of Wrangel. Here, a local ranger and scientists are braving the hungry bears to assess their future survival.
Loss of sea ice impacts not just wildlife but people too. In the remote community of Qaanaaq, Greenland, local Inuit hunters are finding the ice too dangerous to travel and hunt on, risking their traditional way of life. And these changes happening in the Arctic have the potential to affect people far beyond. On Alaska’s open tundra, bubbling lakes hint at the gases being released from the previously frozen soil, including the potent greenhouse gas methane.
There is one place where the full scale of a melting Arctic can be best witnessed - from space. Based in the International Space Station, astronaut Jessica Meir looks down at forest fires across Europe and reflects how our changing weather patterns are interconnected.
Rapid ice loss is also happening across the high mountains of the planet’s continents. Glaciologist Hamish Pritchard uses a sophisticated helicopter-strung radar system to try to quantify how much ice is left in the previously uncharted glaciers of the Himalayas. It’s important as, downstream, some 1.2 billion people rely on glacial meltwater as their primary source of fresh water.
Finally, in Antarctica, we meet Bill Fraser, who has dedicated 45 years of his life to studying the Adelie penguin. Over this period, he has witnessed changes in weather conditions and the extinction of entire colonies. These ‘canaries in the coal mine’ are a sign that all is not well, even in the remotest place on earth. And changes here have the potential to affect all of us, so an international group of scientists is on an urgent mission to assess the stability of a huge body of ice known as the Thwaites ice shelf. If this plug of ice melts and slips into the ocean, it will raise global sea levels, impacting coastal communities across the planet.
The unprecedented changes our scientists are witnessing may be profound, but there is hope that, through a combination of technology and willpower, there is still time to save what remains of our frozen planet.

The risk of human extinction has never been higher. Recent years have seen a global pandemic, a renewed nuclear threat and runaway climate change. New research predicts a 1 in 6 chance that life as we know it won't make it to the end of this century. This compelling science documentary looks at the greatest risks to humanity and what we can do about it. Are we all doomed?

When 22-year-old American engineering student Taylor discovers that her face has been digitally altered to appear in online hardcore porn videos, she is devastated and doesn't know who to trust or what to do.
The police tell Taylor that what this person did is not even a crime, but when she learns that a fellow student, Julia, has also been targeted, she and Julia take the investigation into their own hands, diving into the underground world of deepfake technology and discovering a society of men who terrorize women.

Space exploration as we’ve never seen it before, taking us behind the scenes of how NASA creates and sends the James Webb Space Telescope into space. Follows a team of engineers and scientists in an ambitious mission to launch the telescope and take the next giant leap in the understanding of the universe.

Mars is infested with robots, orbiting the planet and roaming the Martian surface on a mission to uncover its secrets; now, Perseverance joins this dedicated group of machines to uncover if there is, or was ever, life on the Red Planet.
Our neighbor, Mars, fascinates us. It's a planet that is similar to Earth but with some big differences. Mars is rusty, dusty, frigid, and frozen. Past missions suggest that Mars was once a very different world. The Mars we see today has completely changed from the Mars of a few billion years ago. Without a time machine to explore ancient Mars, we employ a team of high-tech robot investigators, an entire fleet of robotic spacecraft exploring the planet. Working together, they dig into Mars's past to answer the ultimate question -- did Mars once have life?

From executive producers Tony Scott and Ridley Scott comes a special about the battle that changed the course of the Civil War and the future of the Nation. ‘The world will little note, nor long remember, what we say here, but it can never forget what they did here.’ Abraham Lincoln's iconic Gettysburg Address frames this epic, feature-length History special.
‘Gettysburg’ looks at this battle from a visceral new perspective, not the generals who commanded from behind the frontlines, but that of the everyday soldiers who fought there, in a confrontation that changed the fate of the nation. Stripping away the romanticized veneer of past treatments, this special conveys new information and honors the sacrifice of those, both North and South, who fought and died there.
Compelling CGI and powerful action footage place viewers in the midst of the fighting, delivering both an emotional cinematic experience and an information packed look at the turning points, technology, and little known facts of perhaps America's greatest battle. Raw, immersive and emotional, this groundbreaking event puts viewers inside the three-day battle where over 50,000 men paid the ultimate price.