Caleb Armstrong keeps hearing voices, and they are causing him more distraction than the war ever did. The one he hears most often is that of his best friend Rick, who died in Afghanistan. Caleb returned is now working as an E.R. nurse in San Diego. Caleb is now living a quiet bachelors existence with his best friend Solomon, trying to find some level of peace in his life. When Caleb meets the beautiful and charming Charity Armstrong by chance at the hospital where works, the two sense a bond developing almost instantly, and Charity's Welsh Corgi Chauncy becomes quick friends with Solomon.
Unbeknownst to Caleb, someone from his past is watching and waiting to exact revenge on the young man. When Caleb meets Charity, he has no way of knowing just how valuable her gifts will become to their very survival.
When Caleb is forced to confront the demons from his past6, he will be forced to go to extreme measures to protect those he loves, and will finally gain true understanding of who he really is, but also why he keeps hearing these three little words- The girl knows.