Treeline celebrates the forests on which our species have always depended, and around which some skiers and snowboarders have based their entire lives. Follow a group of snow-seekers, scientists and healers as they explore the birch forests of Japan, the red cedars of British Columbia and the bristlecone pines of Nevada, delving deeper into the ways we are connected to trees and to how trees network with each other. A beautiful, meditative film.