A shadow has fallen over Equestria. The malevolent Opaline, driven by an insatiable hunger for power, is plotting to seize the very essence of the ponies – their cherished Cutie Marks. If she succeeds, it will transform her into a formidable Alicorn, eclipsing all others. Now, it’s up to the Mane 5 to race against time and uncover Opaline's sinister plan before Equestria loses its magic forever.