Intergalactic warrior Star Butterfly arrives on Earth to live with the Diaz family. She continues to battle villains throughout the universe and high school, mainly to protect her extremely powerful wand, an object that still confuses her.

　　When Star Butterfly destroys her wand to save her best friend Marco Diaz, a new unicorn takes place of the dead one. Now Star only has half of the star on her wand and it has been cleaved. She needs all the pieces of the wand but the other half was lost in the explosion. Join Star and Marco in their new adventure ahead!

　　When Star returns to her home dimension, she discovers that magic is disappearing throughout the kingdom. Star must dig deep and challenge her arch nemesis Ludo in an effort to save her family and kingdom.