Long ago, in the dead of night, Luster Dawn saw a dark figure in Canterlot Castle's throne room. Longer still before that, Princess Twilight Sparkle and her friends defeated one of Equestria's greatest enemies in that same room.
When you're a lonely love vampire, you befriend baby dragons. It's what you do. When you're an alpha bugmoose who adopts an entire hive, you teach reformed parasites how to be cute and cuddly. It's what you do.
Tirek returns to his homeland, the Midnight Kingdom to get revenge on his brother King Scorpan. Meanwhile, Flurry Heart is called by the Cutie Map to deal with a friendship problem in the Midnight Kingdom.
While Chrysalis, Tirek and Cozy Glow try to figure out how to activate the bell, Grogar sets out to the Castle of the Two Sisters to confront the spirit of the Tree of Harmony.
Tirek, Cozy Glow, and Chrysalis awaken to find they have been released from stone and narrowly escape Twilight's guards. They quickly begin plotting revenge, but can they come to an agreement on what to do next?
Rainbow Dash's son Storm Streak is mad that he cannot enjoy a ride at the Ponyville Fair due to his age, so he searches for a mysterious artifact that he believes can turn him into an adult.
While Spike has a night out with his siblings, Flurry Heart and her friends have a sleepover in the now-renovated Harmony Clubhouse tree, but their bickering welcomes in a very powerful ghost that seeks to turn them all against one another.
What is legacy? Is it the memory you leave behind, the tangible deeds that can be seen and whose echoes ring throughout history? Is doing simply enough? Or must we be remembered to truly matter?
While her friends desperately search for their missing friend, Sunny Starscout must escape her captors and warn her friends of the villains' despicable plans to eliminate harmony itself.
When Shining Armor banished Twilight from his wedding, she returned distraught to Ponyville, but she soon got to hear about the changeling invasion of Canterlot. With the help of some unexpected allies, she returns to try and put everything right.
One mysterious slip of paper offering a job that could set James Alvera for the rest of his college life. But the contract and job in question may make quite a bizzare adventure as he was then sent into his favorite TV show with unique abilities.
Pinkie Pie and Cheese Sandwich are preparing for their wedding, but not all is as it seems and Flurry Heart starts to wonder if there is another changeling invasion underway.
The end is coming. Sunny Starscout has rejoined her friends, and together, they must find a way to save Equestria from itself - and all the warring creatures inside it.