The unforgettable story of Tom Ballard and Alison Hargreaves. In 2019, Tom Ballard, holder of various records, disappeared with Daniele Nardi on Nanga Parbat. 25 years earlier, his mother Alison Hargreaves, one of the greatest mountaineers of all time, died just 100 miles away. Through 25 years of intimate and never-before-seen family footage, the film tells the story of a family ready to die for their passion.