Princess Heart is a cheerful, 7-year-old, little girl who only wants one thing-to learn gymnastics. She wants to go to a gymnastics gym, but Mom tells her that it's too expensive. But you see, the little girl won't stop there. After unexpectedly discovering a tumble book in the park, Princess Heart is determined to learn some skills all by herself. Along the way, she runs into some challenges, but learns to quickly overcome them.