When Canterlot Highschool goes on a trip to Camp Everfree, they are surprised to find a magical force is causing strange things to happen around camp. With the help of the Mane 6 and especially Sunset Shimmer, Twilight Sparkle must confront the dark Midnight Sparkle within herself and embrace her newfound magical abilities to save the camp.

Every four years, Canterlot High has 'The Friendship Games' where they must rival with different schools with a series of different sporting events and every year, the cup has gone to Crystal Prep. So Fluttershy, Pinkie Pie, Rainbow Dash, Rarity, Applejack, and Sunset Shimmer must work together to win the cup. But they find out that the other Twilight Sparkle is on the opposing team.

Music rules and rainbows rock as Twilight Sparkle and pals complete for the top spot in the Canterlot High "Mane Event" talent show. The girls must rock their way to the top, and outshine rival Adagio Dazzle and her band The Dazzlings, to restore harmony back to Canterlot High.