Three girls are kidnapped by a man with a diagnosed 23 distinct personalities. They must try to escape before the apparent emergence of a frightful new 24th.

At the edge of an expansive barren valley, all that remains of The Wallace Farm for Wayward Youth is a few hollowed-out husks of buildings. Seventeen year-old Kendal (Haley Lu Richardson) can barely recall when the Oregon valley was still lush. It's been a decade since the last rainfall, and society at large has dried up and blown away. Kendal and the few others that remain barely scrape by, while dreaming of escape. When a greedy water baron lays claim to what little of the precious resource remains underground, Kendal must decide whether to run and hide or bravely fight for the few cherished people and things she has left.

Everyone knows that growing up is hard, and life is no easier for high school junior Nadine (Hailee Steinfeld), who is already at peak awkwardness when her all-star older brother Darian (Blake Jenner) starts dating her best friend Krista (Haley Lu Richardson). All at once, Nadine feels more alone than ever, until the unexpected friendship of a thoughtful boy (Hayden Szeto) gives her a glimmer of hope that things just might not be so terrible after all.

At the edge of an expansive barren valley, all that remains of The Wallace Farm for Wayward Youth is a few hollowed-out husks of buildings. Seventeen year-old Kendal (Haley Lu Richardson) can barely recall when the Oregon valley was still lush. It's been a decade since the last rainfall, and society at large has dried up and blown away. Kendal and the few others that remain barely scrape by, while dreaming of escape. When a greedy water baron lays claim to what little of the precious resource remains underground, Kendal must decide whether to run and hide or bravely fight for the few cherished people and things she has left.