Star is called to solve a problem in Miss Skullnick's math class, but she refuses to do it. She tries to cast some magic to get out of it but ends up in a time loop. However with each iteration, the scenario is slightly different. Star goes to Father Time's dimension, but Father Time is too busy to help her, and she gets advice from Omnitraxus Prime, who is in charge of space-time. Star must solve the problem or her world will fall apart.
After having skirmished with a number of dangerous monsters, Star Butterfly arrives on Earth to live with the Diaz family. However, rather than living a normal life, Star continues on having to battle villains both throughout the universe and in their high school, although if only to protect her extremely powerful wand, an object which she is still confused with.