How well do you know planet Earth? Using the most advanced film-making methods ever developed, earth takes us on a tour of our home as we’ve never seen it before.

Five billion years ago, a massive asteroid crashed into Earth. The impact was so great that it tilted the entire planet at an angle of 23.5 degrees. But far from being a catastrophe, this cosmic accident was crucial to creating life and the world as we know it today. Without the earth’s tilt, we wouldn’t have such a spectacular variety of landscapes, or such extremes of hot and cold. We wouldn’t have the changing seasons. And most importantly, we wouldn’t have the perfect conditions for life.

Using the sun as a guide, we set out on a truly global journey. On the way, we meet three mothers struggling to bring up their young.

In the Arctic, a polar bear family awakens to the first sunlight of spring. Will they find food before the ice on which they live melts?

Half a world away, in the heat of the Kalahari, an elephant mother and her calf find water after a danger-filled trek across the desert. But they must share the pool with a pride of lions. Will their uneasy truce last?

For the final leg of the journey, we follow a humpback whale mother. She must keep her calf safe on their 6,000km migration from the equator to Antarctica. And so life on Earth goes on.

A story played out billions of times a day, 365 days a year, as the earth moves through the seasons, every living creature bending to the power of the sun. No film has ever captured the epic scope of the drama of an entire planet, yet told it with the heartbreaking and heart-warming intimacy of real animal characters. Until now…


Narrated by James Earl-Jones (US) and Patrick Stewart (UK) | Written and directed by Alastair Fothergill and Mark Linfield | Produced by Sophokles Tasioulis and Alix Tidmarsh | Executive produced by Stefan Beiten, Wayne Garvie, Mike Phillips, Andre Sikojev and Nikolaus Weil | Associate produced by Melissa Caron and Amanda Hill