Crystal Light is a light blue unicorn mare. She lives with her sister and Father in the small village of Ponyville. Crystal is visited in her dreams by Princess Luna who tells her to face her fears. The next night she is taken to a special place where the Dream walkers preside. Crystal agrees to give up her special talent and becomes a dream walker herself. But she is faced with a difficult choice between her family and the lonely life of a dream walker when she is forced to keep secrets of her night life.