For years, an imprisoned sorceress has been gathering strength, plotting to free herself. She crafts a strategy that requires maneuvering through space and time. The spells initially prove too challenging, ending in unpredictable results: a bridging of two worlds that sends a human falling over the skies of Equestria. Faced with new challenges, Twilight Sparkle must overcome her own self-doubts to lead a team investigation to unravel the mystery and try to help the human return home.

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