(Takes place between LEGO Equestria Girls 9 and LEGO Equestria Girls 10.)

The Equestria Girls of Canterlot City's LEGO Team have been to many places and defeated all kinds of threats to the Lego World involving Equestrian Magic. Now, as the holiday season arrives, the girls decide to relax and celebrate by traveling to the ideal holiday destination of the Winter Village. As they spend a month at this special region, they'll find themselves on several misadventures.

Summaries of each short story:
Winter Blast: The girls ride the famous Holiday Express train to the Winter Village, but faced with a blizzard upon arrival and somehow forgetting to bring their winter outfits, they must brave the brutal weather just to reach the cabin they rented for their stay in the village.
Operation: Soufflé Delivery: Pinkie Pie is determined to finally bring her holiday soufflé to Rarity while it's still fresh, but she and Sunset unexpectedly find themselves forced to make the delivery run right through the middle of a snowball battlefield.
Past Reflections: While on her way to a friendly meeting with Twilight, Sunset encounters Emmet and Lucy from the former city region of Bricksburg, and as the four of them share stories of their past adventures, they realize they all have quite a lot more in common than they first thought, while also learning some valuable friendship lessons as well. (contains spoilers for The Lego Movie 2)
Secret Stash Recovery: To make up for one of her past crimes, Sunset decides to retrieve one of her secret stashes and donate it as holiday gifts for children, but when she's unable to find where she left that stash, all of her friends will have to work together to figure out it's hidden location.
Holiday Rush: The girls are ready to exchange some gifts, but Rainbow Dash had completely forgotten about the event and is now forced to quickly search through all the shops in the village to find one, and is ultimately left with no choice but to accept some assistance from the one person she never wants to be anywhere near.
The Ridiculous Robbery: The girls have been invited for the rare opportunity to tour Santa's workshop not far outside the village, but when a certain pair of robbers suddenly drop in and threaten to ruin the holiday for everyone, the girls must once again work together to save the day.

This story is a sequel to Dead by Sunset

Starlight Glimmer has never had the opportunity to be 'normal' but despite everything that's happened, she still tries to find happiness.

The closest thing she can find to that happiness is when she's with Sour Sweet, one of the only people in the world she's ever met who understands her, so despite her fragile grip on reality, Starlight Glimmer wants to stay beside Sour Sweet no matter what.

Maybe, hopefully, Sour Sweet might feel the same.

Part of the Dead by Sunset continuity. Find the group Here.

Starswirl’s mirror. A gateway to other worlds. Infinate possibility. In one timeline, it took Sunset Shimmer to Canterlot High. But where else could it have led? This is a tale of a world far different from what you know. Join Sunset on her decent into the depths of a ruined kingdom, as she learns of it’s glory and folly. Join Sunset, as she takes part in the legend of the Hollow Knight.

This story is a sequel to LEGO Equestria Girls 8

In an alternate world where everything and everyone is made of Lego, the Equestria Girls make another attempt to simply enjoy themselves without worrying about fighting any evil or otherworldly magic by attending the Starswirled Music Festival.

While everyone has their own plans to have a good time at this music festival, Sunset's involve spending the first day with Pinkie Pie for their one and only opportunity to watch a live performance of their favorite band, PostCrush. But things get weird when Sunset finds herself repeating that first day over and over again.

Caught in a time loop with seemingly no one else to share her experiences, Sunset Shimmer must try to figure out what caused it and how to stop it, and hopefully not go completely crazy in the process.

Sunset is bored. Discord is bored. What better way to solve their problems than a wacky time travel adventure? A trip to a strange and mysterious era, where nothing makes sense, and everything Sunset knows about the world is called into question.

The Nineteen-Eighties.

This story is a sequel to Revolution in Blue!

An act of villainy has left Crystal Prep Academy in utter chaos! As one of the few pleasures of their school is taken away from them the students seem to finally snap under the pressure of their hard education. When Dean Cadence fails to bring peace and order back to the noble elite school, Sour Sweet takes it into her hands to solve this mystery and bring down justice on the culprits. With the help of her fellow Watsons Shadowbolts, will the self-proclaimed Sherlock Holmes be able to solve this mysterious crime? Or is her ingenious mind actually just full of hot air?

This story is a sequel to Dungeons & Dorks

Normally, history lessons equal naptime for Indigo Zap. But the lectures about the revolution which started their country managed to pick up her curiosity. Inspired by the tales about rebels and battles for justice she is eager to start her own revolution at Crystal Prep Academy. But in her fight for freedom at the elite high school she is facing a powerful opponent. Will she and the other Shadowbolts be able to stand up against their principal? Or will Cinch smother the revolution before it even began?

This story is a sequel to "Let's go, Shadowbolts!"

Contains spoilers for "Friendship games"

Being an admirer of the classic arts, Sunny Flare loves the theatre. She has actually written quite a respectable amount of plays herself, aiming to be just as good as the greatest of their times. But no matter how brilliant and deep the hobbyist writer thinks her scripts are, the theatre group of Crystal Prep Academy refuses to play them. When an opportunity to actually perform and direct one of her works pops up Sunny is more than eager to take it. But as she tries to bring her vision onto the stage, she is not only confronted with the difficulties of transmitting that vision to the other Shadowbolts - but also with the flaws in her own script.

Contains spoilers for "Friendship games"

A few weeks have passed since the friendship games. After the students of Crystal Prep Academy had experienced magic going loose, things have slowly been returning to normal at their own school - meaning everybody minded their own business and tried their best to survive Principal Cinch's harsh education. Eager to reverse any damage caused to her school's reputation she has become even more strict, forcing additional lessons and homework onto her students.

Despite having had some cheerful and warm moments at Canterlot High, most students of Crystal Prep have returned to their selfish and smug attitude, seeing their fellow classmates as little more than rivals. However, a certain group of students seems to have enough of the repulsive behaviour of the other students, and seeks for friendship. Will these five able be able to cast their differences aside, or is even the magic of friendship not enough to warm up the hearts at Crystal Prep Academy?

This story is a sequel to A Stellar Performance

Contains spoilers for "Friendship games"

After having become friends the five Shadowbolts from Crystal Prep Academy spent their first Friday night together. However, the distinct personalities of Sour Sweet, Sugarcoat, Indigo Zap, Lemon Zest and Sunny Flare make it hard to find common ground. In the end, they can only decide on something none of them is really eager to do: Play a table top role-playing game. At first the prospect of spending their Friday night with nerd stuff in a gloomy basement doesn't excite them very much. But the deeper they dive into the adventure, the more intrigued the nerdy game seems to catch their interest...