“Emil & Karl – Small Tires, Big Mountains” follows Jakob and Konne, two adventurous fathers, on a six-day mountain bike tour through the Swiss Alps. Their two-and-a-half-year-old “co-pilots” Karl and Emil are always by their side. The goal is a 180-kilometre tour with 6000 meters of altitude gain around the Swiss National Park. From rumbling stomachs and an unforeseen night in an emergency shelter to unavoidable tantrums during the autonomy phase, the challenges never seem to end. And yet, the journey is also marked by childlike enthusiasm, astonished glances at marmots and mountains, collecting stones, and intimate moments in the tent. Despite all adversities, such as the search for croissants in the Swiss backcountry or the battle for snack supplies, the fathers master daily life in the mountains with humour and astonishing endurance—an authentic insight into the joys and hardships of a special father-child relationship amidst majestic nature.