Pilar, 1/3 trilogy. The documentary series 'In the Three Walls' is a trilogy about the epic walls of Slovenian mountains, each wall with its own specific character and story. In the first part, we are introduced to the most magnificent backdrop of our mountains - the more than one kilometre high North Triglav Wall in the Julian Alps. Together with mountaineers Matija Volontar, Žiga Oražem and mountain guide Tomaž Jakofčič, we make a challenging climb up the Čopov steber (Čop's Pillar). The ascent over the precipices is complemented by intimate views of all three protagonists, a mountain guide Tina Di Batista and a historian Dr. Peter Mikša