It’s about 20 years since the girls graduated and as life happened they grew apart. One day Princess Twilight Sparkle writes to Sunset Shimmer in the journal. Something is coming for them. Something big. Sunset is on a mission to find her friends staring with the two that stayed together even after all these years. After she informs them about the dire situation they set out to find the others but they barely even remember their old high school buddies. As for the rest, who's to say they're even willing to help?