"Barbie is a cosmic princess who flies high on her hoverboard through a far-off universe with her adorable and devoted pet sidekick, Pupcorn. One day, everything changes when the twinkling stars start to dim and slow their dance in the sky. Barbie travels to a beautiful new planet to join a special rescue team on a mission to save the stars."

Barbie and her friends become secret agents who help find a gem thief.