Hidden among the glaciers on Axel Heiberg Island, high in the Arctic Circle, are mountain bike lines too incredible to ignore. Veteran freeride mountain bikers, Darren Berrecloth and Cam Zink, embark on an expedition to the top of the world to explore this relatively unknown land, while sharing their knowledge with emerging stars Carson Storch and Tom van Steenbergen. With guidance from scientists based on the island, they discover a rapidly changing environment steeped in history, along with descents topping 2,500 feet. The adventure will not only test their skill, but also their sanity. In a world of instant connectivity and distraction, a month inside their own heads may prove to be the ultimate challenge.