In the year 10,191, the most precious substance in the universe is the spice Melange. The spice extends life. The spice expands consciousness. The spice is vital to space travel. The spice exists on only one planet in the entire universe, the vast desert planet Arrakis, also known as Dune. Its native inhabitants, the Fremen, have long held a prophecy that a man would come, a messiah who would lead them to true freedom.

When 11-year-old Riley moves to a new city, her Emotions team up to help her through the transition. Joy, Fear, Anger, Disgust and Sadness work together, but when Joy and Sadness get lost, they must journey through unfamiliar places to get back home.