Tyler Doherty (Tanner Maguire) is a young boy facing his battle with cancer with an upbeat, positive outlook on life. His outlet comes in the form of letters he writes to God, and mails out daily. When substitute postman Brady McDaniels (Jeffrey Johnson) receives the letters, things begin to change in his life. Brady is at a crossroads of sorts in his life, unhappy and unsure where to turn. Through Tyler's letters, he begins to get drawn into the youngster's story, and into the Doherty family. When Brady meets Tyler and his single mother Maddy (Robyn Lively), he gets even more involved in their lives. Can Tyler's intense faith and positive attitude be an example for all of those around him?