"Seven years ago, Miles Pussett was a steeplechase jockey, loving the rush of the race. But after an unfortunate event, he left horseracing behind and swore he would never return. Now he gets his adrenaline rush from riding headfirst down the Cresta Run, a three-quarter-mile Swiss ice chute, reaching speeds of up to eighty miles per hour. Finding himself in St. Moritz during the same weekend as White Turk, when high-class horseracing takes place on...