In 1966, John Harlin II died while attempting Europe's most difficult climb, the North Face of the Eiger in Switzerland. 40 years later, his son John Harlin III, an expert mountaineer and the editor of the American Alpine Journal, returns to attempt the same climb.

In 1966, John Harlin II died while attempting Europe's most difficult climb, the North Face of the Eiger in Switzerland. 40 years later, his son John Harlin III, an expert mountaineer and the editor of the American Alpine Journal, returns to attempt the same climb.