James Crawford explores the ways that the Scottish people have managed to surmount the challenges of tough terrain to connect communities and places across the centuries. Taking to the air in a seaplane, he visits Loch Ness to reveal its geological secrets, uncovers traces of the Viking era, explores how we have crossed the treacherous Pentland Firth and flies above the stunning West Highland line. Finally, he visits the Highland crofters and Scotland's first spaceport