Canterlot High meets its rival school, Crystal Prep Academy, in a competition that’s a long-standing tradition – The Friendship Games. Sunset Shimmer is tasked with keeping magic out of the games to avoid the appearance of impropriety while she and her friends compete against Crystal Prep’s top students led by someone with an equal amount of interest in Equestrian magic – this world’s TWILIGHT SPARKLE.
When Canterlot Highschool goes on a trip to Camp Everfree, they’re 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.
Music rules and rainbows rock as Twilight Sparkle and pals compete 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.
The story follows Sunset Shimmer, who (using her powers) finds out that her friends’ memories of her have been mysteriously erased, resulting in them getting amnesia. Determined to set things straight, she’ll need Princess Twilight’s help from Equestria in order to find out the source of what caused her friends’ memory loss.