The North Face and Sherpa Cinema present Tsirku. Ralph Backstrom and crew venture out onto the Tsirku Galcier with the hopes of riding Corrugated.

Faced with a sixty-kilometer snowmobile route across a massive glacier marked by crevasses, seracs, severe wind, and avalanche terrain, the journey soon became as relevant to the story as the destination. Due to the constantly changing weather and snow conditions, the team took over a week to develop the route and drop fuel and gear caches before completing the full day mission from Haines Pass to Corrugated- The North Face