Rachel Braun was the inspiration to her group of friends, the one who lived each day to the fullest - and the one whose life was cut tragically short. Upon her untimely death, Rachel left letters for her three best friends challenging them to face their biggest fears.

Sarah, an international relief worker, must travel half way around the world to track down the only man she ever loved. Stay-at-home mom Kate must confront her fear of heights by skydiving and soon finds that her new hobby is affecting her once-tranquil marriage. And Jo, a media mogul voted 'least likely to breed', is given the most terrifying assignment of all: caring for Rachel's orphaned and grieving little girl.
Even as these women mourn Rachel's passing, her legacy lives on and their lives are enriched by a friend who, in many ways, knew them better than they knew themselves