Guinevere Jones S01E05 - Weird Sisters

As the high school prepares a production of MacBeth, Gwen runs afoul of Wind, Reine and Fire when queen bee Reine realizes Gwen is her chief competition for Josh's affections. Meanwhile, Katie follows Gwen to the forest glade and discovers the secret of Gwen's magic - only to become the object of derision when she tries to impress the disbelieving kids at school with the knowledge. Patrick O'Leary takes up a teaching position at Griffin High.