A princess promises to befriend a frog to get her ball back. Once she has what she wants, the girl leaves the frog behind. The king finds out about the princess's broken promise and makes her be friends with the frog. The frog turns into a prince whom she marries. As the couple rides in a carriage to the prince's kingdom, they hear a cracking noise made by iron bands that surround the heart of the prince's coachman. The coachman had the bands put around his heart to keep it from bursting from grief when the prince was turned into a frog.