For four years, Brian Keenan and John McCarthy were incarcerated in a Lebanese dungeon. From the blank outlook of a tiny cell, with just each other and a few volumes of an ancient American encyclopaedia to sustain them, they could only wander the wide open spaces of their imagination. To displace the ugly confines of their existence, they imagined walking in the High Andes and across the wastes of Patagonia. Five years after their release, Brian and John chose to travel together again to see how the reality of Chile matched their imagination and to revisit their past experiences. Between Extremes is the story of that journey.