Everything changes for Cameron Cunningham when he meets nurse Alex Spiegle at a summer camp for disabled kids. Cameron watches Alexas untiring faith as she battles bone cancer and circumstances that would make most people give up. All the success Cameron previously enjoyed seems small compared to Alexas quiet strength and the mountains she has overcome. Together they go through dangers and trials, and Cameron begins to see that what Alex has gives her the courage to face life and death every day. Fighting his own internal battles, Cameron comes to a cross in the road and has to make the most important decision of his life.