We all long for something. Sometimes we do not find it in what surrounds us, but what lies within, and to learn that, we often venture far and wide, only to become what we did not seek. Sungown, a young pegasus filly, feels destined to learn more about the world and its mysteries. But she simply cannot imagine what her future has in store - for she sets out on a journey that will not only change her life, but that of many others.