In terms of sports which have a difficult learning curve, slacklining is hard to beat. Despite the fact that at some point not too long ago (in evolutionary terms) our ancestors were living in trees, we've quickly evolved to be much more comfortable on flat, stable surfaces.
Highlining is like slacklining, except instead of stringing the line two feet off the ground, highliners seek out spots where their lines can be hung hundreds or even thousands of feet above solid ground. And for at least six highliners, even that isn't gnarly enough. PATHFINDER follows the aforementioned six as they embark on an expedition into the Norwegian wilderness with a very specific goal: To highline with the northern lights providing their sole illumination.