Celestia and Luna decide to retire and hand off the ruling of Equestria to Twilight and her friends.

Mane Six and Twilight grapple with the loss of the Tree and Elements of Harmony.

[Treehouse Channel]The Young Six respond to a magical summons from the Tree of Harmony, only to learn it has been destroyed, and it is up to them to figure out how best to memorialize it.

[Treehouse Channel]Twilight and Shining Armor pit their wits against each other to settle a long-standing sibling rivalry score - but they soon discover they’re not the only competitors.

[Treehouse Channel]Twilight realizes she never returned a book to the Canterlot Library, and besides incurring the disgrace of a super-overdue book and huge fees, she may have caused her favorite librarian to lose her job.

[Treehouse Channel]Rainbow Dash's old pal Quibble Pants needs his friend's help to bond with the daughter of his new special somepony because, like Dash, she's a real sports pony. Unfortunately Quibble... isn't.

Sandbar asks Yona to a "pony dance" .

Grogar sends his legion of doom on a mission to become allies.

Molder returns to the Dragonlands with Spike.

Apple Bloom becomes obsessed with catching a magical creature.

Starlight Glimmer relishes her role as school counselor.

Unexpected visitors to Ponyville threaten to break up the Cutie Mark Crusaders forever.

Twilight and her friends struggle to cover the princesses' many royal duties alone.

Pinkie Pie seeks help from her old friend, the super-silly Cheese Sandwich in finding her life's purpose.

The School of Friendship is starting a buckball team and Rainbow Dash won't be coaching the team.

Twilight's hopes of keeping her winning streak alive are waylaid when she's paired up with Pinkie Pie.

Twilight is determined to make Celestia and Luna's last Summer Sun Celebration memorable.

Zecora gives a potion to help Fluttershy's and Angel Bunny's understand each other--by switching bodies!

Rarity worries she's done something to upset Spike.

Starlight decides to hire a Vice Headmare in preparation to take over the School of Friendship from Twilight.

Another author releases his own version of the events in AK Yearling's Daring Do books upsetting Rainbow Dash.

The Cutie Mark Crusaders are magically transformed into grown-ups.

Big Mac and Sugar Belle decide to propose to each other.

A villainous alliance unleashes their unified might on Equestria.