"On a quiet night in early 1996, Bob Sorenson finds himself alone as he skis the Luce Line Trail--a former rail road grade turned multi-use trail in the prairie of western Minnesota. His friends are somewhere ahead in the deepening dark, but his thoughts lay somewhere else. As Bob travels the trail, trying to catch up with his buddies, the solitude sends his mind wandering into the past, to warm summers with his family--and one particularly cold day...