On May 16, 2002, Phil and Susan Ershler reached the top of Mt. Everest and became the first couple in history to scale the fabled Seven Summits. What made their achievement all the more remarkable was that Susan was not a mountain climber, but a high-powered Fortune 500 executive who had never hiked or climbed until she met Phil at the age of 36.

Phil, a professional mountain guide who was the first American to summit Everest from its treacherous north face, had climbed his whole life with Crohn’s disease, a chronic, debilitating illness. Adding to these challenges, just before their final summit, Phil was diagnosed with colon cancer, and the resulting surgeries and complications were expected to end his career.

This is Susan and Phil’s story: a tale of love set in the mountains, a story of triumphal highs and devastating lows in quest of a seemingly impossible dream.