Megan Walsh (Steinfeld) isn't your typical teenager. Trained as a special ops agent under the tutelage of the ruthless Maxwell Hardman (Jackson) in the elite secret training programme known as the Prescott School for Girls, she's never even set foot in an average high school.
But Megan yearns for an ordinary adolescence and she's determined to have just that. After faking her own death during an international mission she adopts the role of a Canadian exchange student and throws herself into normal school life.