MacGregor's Final Battle (Unabridged‪)‬

When Donald (Mac) MacGregor learns that brain cancer is killing him, he sets out in an RV on one last adventure. Along the way he meets Kate Graham, a nurse in an assisted living facility who is looking for an escape from a dead end life. 

Their stories unfold as they follow the Lewis and Clark Trail across the Great Plains to the Pacific Ocean and then continue into the wilds of Alaska. The short time she and Mac spend together inspires her to restart her life.