David Attenborough narrates this continent-by-continent survey of wildlife, with one episode devoted to each of Earth's seven landmasses. Antarctica opens the series with penguin colonies battling ice and predatory leopard seals, then the film moves to Asia's snow leopards and orangutans, South America's flesh-eating caterpillars and cliff-nesting parrots, Australia's cassowaries and coral reefs, North America's grizzlies and monarch butterflies, Europe's wolves and wetland birds, and Africa's chimpanzees and desert elephants. Camera crews spent years in the field to capture behavior rarely filmed before, including hunts, migrations, and mating displays, using long lenses and patient stakeouts rather than staged setups. Each episode also traces how the continent's geological history, from plate tectonics to ice ages, shaped the animals living there now. Alongside the spectacle, the series returns repeatedly to how climate change and habitat loss are already altering these landscapes, closing each region's story with a clear-eyed look at what stands to be lost.