The Princess and Bona enjoy a game of mini-golf in the playroom, catching the eye of the Prince, who’s playing with his model of the solar system. He challenges his sister, using toy planets as golf balls. Soon, they're catapulted into a fantasy world where the Princess and Prince, as astronauts, play cosmic golf, employing outlandish tactics like black hole bypasses and giant clubs! They compete at first but ultimately collaborate to simultaneously whack a colossal golf ball towards the hole. But wait, the ball's stuck! Bona leaps onto the ball, nudging it into the hole, and the jubilant kids and their dog conclude the most incredible golf match ever.