This film journeys through the puzzles that nature used as it designed and shaped the Australian continent. The story criss-crosses the continent discovering the world’s oldest living organisms and how sea fossils three hundred million years old came to be on mountain tops, hundred kilometres from the ocean. We will see how a comet from beyond the stars struck the earth a hundred million years ago with the force of two hundred thousand atom bombs. And we’ll learn how Australia’s animals developed into unique species found nowhere else on the planet. The passage of time and power of the elements have levelled mountains once as high as the Himalayas and made others to look like ancient cities preserved in stone. These puzzles of nature have created "mysterious Australia".