While skipping class one day, seventeen-year old Daisy finds a mysterious message in the girls’ bathroom. Though she’s not sure if it’s meant for her, she’s determined to find the sender. Every message has a sender. Soon she begins witnessing strange lights in the desert surrounding the small Arizona town from which she’s determined to escape. Before she can go far, however, she must face the parts of herself she wishes to rewrite. Inspired by the Phoenix Lights phenomena of the late 1990s, Terrestrial explores themes of isolation, communication, place, and the desert as both a home and a questionably inhabitable environment.