In the summer of 2018, 57 year-old Grace Ragland set off on the Tour Divide, a 2700-mile mountain bike race along the Continental Divide from Banff Canada to the Mexican border. An infection sidelined her on the second day, and then the third. When she rejoined the race two days later, the other competitors were long gone. Grace had a choice to make; drop out or continue on her own through the rugged and dangerous Rocky Mountain wilderness. Grace confronts many obstacles on her journey, including her old nemesis, Multiple Sclerosis. But Grace is carrying a secret that even she does not know. It is a secret that will change her life.