Last Summer tells the story of two high school sweethearts, Luke (Pettit) and Jonah (Rose), who spend their last months together over a long, quiet summer in the deep South, contemplating their uncertain future and the uncertain future of America. Jonah, sensitive, quiet and artistic, prepares to leave his small town for college, leaving Luke behind, but all he wants is for Luke to ask him to stay. But Luke, an athlete struggling through summer school, understands that his boyfriend needs to experience the world outside their home. Though he is somewhat aimless and unsure of his spot in the world, he starts to find solace in an old camera.