Sir David Attenborough explores the surprisingly vibrant seas that surround the British Isles. The vast watery wilderness around us is over three times the size of our land mass, and yet to many, our oceans remain a mystery. Full of colour and teeming with life, the seas of Britain and Ireland are crucially important to a range of wildlife. This episode goes beneath the waves to uncover the thriving habitats that exist along our 22,000-mile coastline. In winter, clear evidence of the ocean’s abundance can be seen on a beach in Norfolk. Thousands of grey seals congregate on the shoreline to give birth. Britain and Ireland are home to 40 per cent of the world’s grey seals, and the number being born on our shore rises every year. Once the newly born pups are weaned, the females are ready to breed again, and heavyweight males enter violent, bloody fights to win a stretch of beach, and the females along with it. Beyond the beach, the vibrant shallows contain several important habitats. Rich beds of seagrass are nurseries for a range of animals, while also acting as very important carbon storage areas. They are also home to one of the strangest fish in our waters, the seahorse. We follow a male and female as they perform a balletic mating dance in the water, delicately entwining their tails. The stakes are high, as these animals mate for life. In a touching piece to camera, Sir David bids a fledging Manx shearwater chick farewell as it embarks on a 6,000-mile journey across the oceans to South America. There is no better example of how important the British Isles and its abundant seas are to the survival of wildlife worldwide.
In episodes 17 and 18, the Second World War enters its most devastating final phase as two distant battlefields become the stage for unimaginable destruction. Across the Pacific, American forces fight island by island against an enemy determined to resist to the very last soldier. Every beachhead is won at an unbearable cost, revealing a campaign where courage, sacrifice and survival are pushed beyond all human limits. As casualties mount and Japan refuses to surrender, the conflict descends into one of the bloodiest chapters in military history. Meanwhile, the Soviet Union launches its overwhelming final offensive into the heart of Nazi Germany. As the Red Army closes in on Berlin from the east and Western Allied forces advance from the west, Hitler's collapsing regime makes one last desperate stand. Street by street, the battle for the German capital becomes a brutal struggle that seals the fate of the Third Reich. Through extraordinary archival footage and firsthand accounts, these episodes reveal how two immense campaigns—one in Europe and one in the Pacific—brought the deadliest war in history to its dramatic and unforgettable conclusion.
In episodes 7 and 8 of Season 2, rivalries harden and new alliances begin to reshape the balance of power on both sides of the sea. Ragnar and King Horik clash over the fate of Jarl Borg and over who should control their next expedition to England. While Horik argues that they still need Borg’s ships and warriors, Ragnar finds an unexpected new ally in Lagertha, now commanding warriors of her own. With that obstacle removed, Ragnar carries out one of the most terrifying punishments in Viking tradition: the blood eagle. At the same time, King Ecbert welcomes King Aelle to Wessex and seals an alliance between their kingdoms through marriage, preparing England for the Vikings’ inevitable return. The tension only increases when Aslaug’s dark prophecy appears to come true with the birth of Ragnar’s son Ivar, while the Viking fleet once again sails for Wessex. Ragnar wants negotiation and sees the possibility of something more lasting than simple plunder, but Horik is driven by revenge and increasingly resents Ragnar’s independence. Ecbert, meanwhile, prepares both for peace and war, using Athelstan as a link to the man he knows is unlike any other Viking leader. When Ragnar discovers that Athelstan is still alive and Ecbert offers talks under safe conduct, the possibility of a historic agreement suddenly emerges—but distrust, ambition and bloodshed threaten to destroy it before it can even begin.
In the next three episodes the journey moves into three radically different worlds where survival depends on mastering water, ice and extreme seasonal change. In the Amazon, giant river otters hunt as a family, black caimans ambush newly hatched turtles, army ants sweep through the forest in highly organized raids and a harpy eagle guards a vulnerable chick high above the jungle floor. The rainforest emerges as a vast living system, shaped by rivers, floods, towering trees and countless species competing for food, space and the chance to raise their young. The story then heads north to Alaska and Canada, where polar bears wait for sea ice, wolves struggle through blizzards, hares evade lynx and immense caribou herds cross dangerous meltwater rivers during their ancient migrations. Finally, along the Gulf Coast, flooded swamps and subtropical wetlands become the stage for black bears, alligators, manatees, burrowing owls and one of America’s rarest wild cats, the ocelot. From the frozen Arctic to the humid marshes of Louisiana, Florida and Texas, these episodes reveal how animals adapt to landscapes that can change completely from one season to the next.
In winter, clear evidence of the ocean’s abundance can be seen on a beach in Norfolk. Thousands of grey seals congregate on the shoreline to give birth. Britain and Ireland are home to 40 per cent of the world’s grey seals, and the number being born on our shore rises every year. Once the newly born pups are weaned, the females are ready to breed again, and heavyweight males enter violent, bloody fights to win a stretch of beach, and the females along with it.
Beyond the beach, the vibrant shallows contain several important habitats. Rich beds of seagrass are nurseries for a range of animals, while also acting as very important carbon storage areas. They are also home to one of the strangest fish in our waters, the seahorse. We follow a male and female as they perform a balletic mating dance in the water, delicately entwining their tails. The stakes are high, as these animals mate for life.
In a touching piece to camera, Sir David bids a fledging Manx shearwater chick farewell as it embarks on a 6,000-mile journey across the oceans to South America. There is no better example of how important the British Isles and its abundant seas are to the survival of wildlife worldwide.