Europe has a stunning biodiversity. The landscapes show their natural history which reaches back into the far past. The geologist Colin Devey sets off to search for clues. In the first part of this expedition, he is exploring the continent’s origin. On the Scottish island Lewis, he finds the oldest rocks of Europe. They form the basis for the famous Scottish Highlands. An expedition to Loch Ness points out, that the long lake is part of a primeval plate border, which extends all over the northern hemisphere.