The story follows Katherine "Kit" Secord, a brilliant and headstrong teenager living in the bustling, retro-futuristic city of Hughesville, California. Kit's life is turned upside down when she discovers a hidden case in her grandfather's workshop containing the iconic Rocketeer helmet and a powerful, state-of-the-art rocket pack. Balancing the pressures of high school, family secrets, and her budding sense of justice, Kit must learn that being a hero isn't about the power of the suit, but the courage in her heart.