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 Chicago Tribune in late June of '42 reports the mass killing of Jews. Like many other newspapers, the Tribune puts it on page 6 or 7 in a tiny, little article. You either missed it, or if you saw it, you would say the editors don't think this is true. If they thought this was true, this would be on the front pages. Only a few of papers did put the story on the front page, including the Pittsburgh Courier.
The dominant idea in the American government is any act of rescue will be a diversion from the war effort. Both could've been done at the same time. In spite of that, a group of government officials supports and finances rescue operations. Allied soldiers begin to liberate concentration camps and find mass graves. The public sees the sheer scale of the Holocaust.

In his second year in the team, Haas driver Mick Schumacher faces a lot of pressure, which is not helped by a lot of expectations from being a Formula Two World Champion and being the son of a seven-time World Champion. The paddock travels to the Jeddah Corniche Circuit for the second running of the Saudi Arabian Grand Prix; as qualification for the race begins, Mick's run grinds to a halt when he suffers a big crash, ruling him out of the race due to the damage sustained to his car. Schumacher continues to struggle after Saudi; in Miami, Schumacher, in ninth place, collides with Sebastian Vettel, taking both drivers out of the race; he starts his Monaco run at the back of the field, only to lose it coming into the swimming pool section and splitting his car in half in the ensuing crash.
By the time the paddock has traveled to Baku, Magnussen has led the championship for the Haas team with 15 points against Schumacher's 0, and faces a lot of pressure over his future in the team. Schumacher starts the race in last place, while Magnussen rises up the field. However, Magnussen's race is stopped due to an engine issue, leaving Haas' chance for points in the hands of a slow-running Schumacher. Indeed, Schumacher is running very slowly to the point he is lapped by the leading Verstappen. Away from the track, Schumacher trains with his personal trainer, convinced he can still score points.
At Silverstone, Schumacher starts at the back of the grid, but the session is red-flagged due to a big crash for Zhou Guanyu, which the Haas drivers manage to avoid. Schumacher and Magnussen are due to start 16th and 14th, respectively. Schumacher pushes through the field - and with an overtake on Ricciardo, a DRS-assisted overtake on Vettel - and ultimately Verstappen, he ultimately manages to finish eighth - his first points in Formula One, sending the Haas pit wall into a celebration; Vettel and Verstappen also congratulate Schumacher for his efforts during the race. However, despite his efforts in the race, Mick's seat in the Haas team remains open.

Under the management of new team principal Otmar Szafnauer, Alpine F1 Team goes into 2022 retaining their drivers Fernando Alonso, a veteran of Team Enstone and two-time Champion, and Esteban Ocon, the driver who took Alpine to their first victory since 2014, with a new reserve driver in Australian driver and 2021 Formula Two champion Oscar Piastri. Alpine scores consistent points scores in Miami, Baku, and Austria.
By the French round - the home race of Alpine - McLaren and Alpine are tied for sixth in the Constructors' Championship. Early into the race, Alonso edges past Lando Norris for fourth, with Ocon behind him. However, Ocon inadvertantly takes Yuki Tsunoda out of the race, giving him a five-second penalty. Pitting soon after drops him down out of the points, with Alonso now sixth and a second behind Norris. Alonso holds the McLarens up to buy enough time for Ocon to pass them. Alonso finishes sixth and Ocon eighth in their home race.
Before Hungary, it is revealed that four-time Champion Sebastian Vettel will retire from Formula One, sending the paddock and media into a frenzy with the prospect of a ‘silly season’ on the horizon for Aston Martin; Szafnauer is adamant that Alonso is staying with Alpine for 2023. Hungary is the make-or-break round for Alpine - both drivers need to score higher points than McLaren to achieve fourth in the Constructors' Championship. Ricciardo and Lance Stroll both overtake the Alpines, but Ricciardo punts Stroll off the track, giving him a five-second penalty. Alonso and Ocon barely hold on to the points, and Ricciardo finishes fifteenth after his penalty, allowing Alpine to secure fourth place. The team and their title sponsors BWT celebrate at a sponsor dinner. The next day, Alonso reveals he had received a call from Aston Martin team owner Lawrence Stroll to replace the outgoing Vettel, moving him out of Team Enstone. Left with no other option, Alpine announce Piastri for the 2023 season, and McLaren are looking to replace Ricciardo with Piastri, who they have had eyes on. To make matters worse for Alpine, Piastri announces on Twitter that he will not be driving for the team, considering he had not signed such a contract with them.

As the season goes into the summer break, the effects of Oscar Piastri's refusal of his Alpine seat are still felt - and right in the line of fire is McLaren's Daniel Ricciardo, who had been struggling throughout the season. Indeed, McLaren has announced Ricciardo's retirement from the team after the season, with Piastri taking his spot. Meanwhile, Alpine are still reeling from the losses of Piastri and Alonso, but the Piastri fiasco has backed both Alpine and McLaren into a wall, with Alpine potentially taking Piastri to court and McLaren CEO Zak Brown potentially having to pay Piastri and Alpine - and given Ricciardo's near-consistent results back at Team Enstone back in the 2019 season, it remains unknown if he would return considering his decision to move to McLaren in 2021.
The Dutch round is the first ever since the announcement, and Ricciardo and Gasly, both winners of past races, are looking to perform their best. Gasly fights with Alonso in the midfield as Ricciardo, having received fresher rubber, pushes on Vettel while Alonso manages to take Gasly up. Ricciardo continues to drop down the field as both Haas drivers pass him. Gasly finishes eleventh with Ricciardo in seventeenth. By the Japan round, Alpine announces will have a new driver in Pierre Gasly for the 2023 season.

The 2022 Formula 1 season comes to a close in Abu Dhabi, with Ferrari fighting to stay ahead of Mercedes and McLaren hoping for a miracle to overtake Alpine. The season finale is being closely watched. This season marks the end of Mercedes and Lewis Hamilton's dominance, as Hamilton fails to take a win or pole position.