After a member of her competitive cheerleading team is injured in practice, sixteen-year-old Marnies is asked to be a flyer--the most coveted role in cheerleading. The Soar Starlings have a real shot at the provincial championship, and Marnie has only a few weeks to prepare. While she scrambles to polish her lifts and throws, Marnie's personal life begins to unravel, and she realizes that, to be a leader, you have to let go of old alliances to make room in your life for new ones.