Coraline Wenham is an orphan with a passion for gymnastics. She works—albeit reluctantly—as an assistant at a snack bar. One day, she finds a mysterious letter and applies for a spot at the "Gymnastics Academy," where she is promptly accepted. However, Harley Cunningham—a wealthy and popular gymnast—is far from pleased about Coraline's presence. To become the successful gymnast she has always dreamed of being, Coraline relies on the help of her assistants: Max, a playful inventor and childhood friend, and Sasha Madrigal, a fellow gymnast who also works as an assistant.