In an isolated ranch in California, a pair of siblings, Otis and Emerald, inherit their family's legacy: breeding horses for the movies. However, their tranquil life is interrupted when they begin to experience strange phenomena in the sky. What starts as curiosity quickly turns into obsession. Armed with cameras and an insatiable desire to capture the inexplicable, Otis and Emerald embark on a quest that leads them to uncover a terrifying mystery that has permeated their lives and their family history.