Doris, the dizzy cow, is scared of heights. After spending summer in the cool mountain air, it is time for the September désalpage festival, when the herd heads down the mountain to while away winter in the valley below. Warm it may be, but Doris doesn't want to face the bumpy, steep and perilous path that leads there! She will have to find a way to stay warm and dry on the mountain during the snowy winter… unless her faithful friends - a marmot, two ostriches and a dog - can help her overcome her fears.