The girls try to come up with a theme for the big party to be held later that night.

Twilight Sparkle and her human friends have fun at a Canterlot High evening carnival.

Rarity is trying to move a grand piano into the band room for practice, so she gets the Diamond Boys to help her.

The Powerpuff Girls face their greatest challenge in this 10th anniversary special episode. There exists a Key to the World, which is handed from city to city on an annual basis. Whoever possesses the key rules over the entire world. When the key is delivered to Townsville, every villain in Townsville attempts to retrieve it. When the girls procure it for themselves, they quickly get sucked into a power struggle, fighting the villains and themselves over who gets to rule the world.

故事叙述一只叫暮光闪闪(TwilightSparkle jijikb.com)的小马为了执行导师塞拉斯提娅公主（PrincessCelestia）给她的任务，与助手斯穗龙（Spike）一起来到小马镇学习有关友谊的魔法的知识，其中她认识了苹果杰克（Applejack）、瑞瑞（Rarity）、小蝶（Fluttershy）、云宝黛西（RainbowDash）与碧琪（PinkiePie）五位好朋友，每只小马都代表着友谊的每个元素，并在和谐水晶（E... 故事叙述一只叫暮光闪闪(TwilightSparkle)的小马为了执行导师塞拉斯提娅公主（PrincessCelestia）给她的任务，与助手斯穗龙（Spike）一起来到小马镇学习有关友谊的魔法的知识，其中她认识了苹果杰克（Applejack）、瑞瑞（Rarity）、小蝶（Fluttershy）、云宝黛西（RainbowDash）与碧琪（PinkiePie）五位好朋友，每只小马都代表着友谊的每个元素，并在和谐水晶（ElementsofHarmony）中，各扮演重要的关键元素。此后，暮光闪闪(TwilightSparkle)便与她认识的新朋友们开始了有趣的日常生活，在第四季时暮光闪闪（TwilightSparkle）和她的五个朋友在第四集以及之后开始写日记。

Shy unicorn Twilight Sparkle and her five pony pals have adventures that teach them about the most powerful magic of all: the magic of friendship.