The first filmed winter ascent of the north face of the Matterhorn. To set the scene, the tragic story of Edward Whymper's first ascent is skillfully pieced together. The modern expedition, a team of three British climbers, is also plagued with epics: Eric Jones is hit by an avalanche and can only come to a dangerous stop at the edge of a 1000 foot drop. Then the worst storm ever recorded in Zermatt hits the Matterhorn. With time and weather against them, the team is forced to climb in the dark ...