Our planet Earth goes back some 4.5 billion years, in a history driven by the formation and movement of continents, volcanic eruptions, impacts from space, and the sheer persistance of life's evolution. This rich collection of Earth-centric documentaries takes viewers into the ongoing drama of the small, rocky world we call home. Get up close to active volcanoes, discover the formation of mountain ranges, and delve into the many ways humans have influenced the future of our planet and its natural systems.