Ewan, Charley, and the team land in Ushuaia, the southernmost tip of South America, but tensions arise due to snow and mechanical issues. Traveling 13000 miles over 100 days on electric bikes is hard to imagine. Ewan McGregor and Charles Boorman find out how challenging their mission is as they embark on a journey on prototype Harley Davidsons and the Rivian trucks. The first obstacle is electricity. While parts of the city have no problems with charging the bikes and the trucks, the countryside is where the duo face issues.

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.

A major new series exploring the wildlife of South America. This is a breathtaking aerial journey through the most spectacular locations on the continent, from the icy peaks of the Andes to the Amazon jungle and the Atacama desert. These extreme conditions are home to a mind-boggling variety of creatures, many of them rarely seen before on television.