Three days after she learns that her brother Finn died serving in Iraq, Honor receives a letter from him asking her to drive his car from Texas to California for a concert, and when his estranged best friend shows up suddenly and offers to accompany her, they set off on a road trip that reveals much about all three of them.

After her brother died serving in Iraq, Honor receives his last letter which she interprets as a final request for her to see California. When his friend shows up and offers to accompany her, the road trip reveals much about all three of them.