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) begins dating her best friend Krista (Haley Lu Richardson). Now, Nadine is forced to see the people in her life – including her well-meaning but distracted mother (Kyra Sedgwick), and unlikely mentor and history teacher Mr. Bruner (Woody Harrelson) – with fresh eyes and with a realization that people and life are more complicated than she thought.