How fast is the Greenland ice sheet melting? Filmmaker Lars Henrik Ostenfeld investigates this question. He accompanies scientists as they explore the ice on location, because what happens to the ice sheet in Greenland provides clues to the behaviour of the ice as a whole. A voyage of discovery deep into the Greenland Ice Sheet, into a wild and magical landscape. A stirring documentary that shows scientists who are passionate about preserving our planet. And a call to take the evidence on climate change seriously.