Earth Story unravels the secrets of our planet and brings it alive. The series took three years to make, cost £3 million and was filmed all over the world, from the craters of active volcanoes to the ocean floor. Where the cameras could not go, in both time and space, the latest animation techniques take over. Combining live-action footage with state-of-the-art computer graphics which enable us to travel back and forwards through time, this is a fantastic journey of scientific discovery and a comprehensive history of life - in all its forms - on the planet.