Growing up can be a bumpy road, and it's no exception for Riley, who is uprooted from her Midwest life when her father starts a new job in San Francisco. Like all of us, Riley is guided by her emotions ; Joy, Fear, Anger, Disgust, and Sadness. The emotions live in Headquarters, the control center inside Riley's mind, where they help advise her through everyday life.

Single mother Kate Reese is on the run. Determined to improve life for her and her son, Christopher, she flees an abusive relationship in the middle of the night with Christopher at her side. Together, they find themselves drawn to the tight-knit community of Mill Grove, Pennsylvania. It's as far off the beaten track as they can get. Just one highway in, one highway out. At first, it seems like the perfect place to finally settle down. Then Christopher...