After getting kicked out of college for the semester, Val goes back to his hometown and moves in with his single dad, where he sets himself two goals: write the next great American novel and get his high school girlfriend back. But after Val’s friend suddenly dies and his 12-year-old brother Charlie comes to live with him and his dad, Val quickly realizes that he has to grow up fast so that Charlie doesn’t have to.

After graduating college, two girls go on a road trip with their brother's 1979 camper van. Through this journey, they uncover their love for one another that they've been hiding from, which runs parallel to their brother's secret relationship.