Hazard's a military kid, best known for his prowess at football, and his short fuse. His dad's been in Afghanistan, third tour. The worry and the pressure over school and his dad are getting to Hazard until one day, the fuse sets off and the repercussions have him benched for six games and assigned to go to therapy. Which is where his dad is as well, at Walter Reed Medical Center, because he's home now--well, most of him. Hazard's dad's now learning to walk with a prosthetic, but that's not his primary injury. His worst wound is a moral injury: what he did on the battleground that he may never be able to forgive himself for.

As part of Hazard's therapy, he has to trace back the causes of his own anger by tracing back his father's journey, through letters and emails and texts, so that he can come to terms with what he himself has done--his own moral injury--and help his father overcome his own.