While everyone was gone, including Human Twilight, Princess Twilight spends her Summer vacation in the Mirror World by meeting people she missed when she was away.
It's the final year in school for Indigo and her friends. There are still a lot of challenges to face and she's prepared for all of them... except maybe finding love.
When a rival team crashes Crystal Prep's soccer practice, Indigo Zap has trouble standing up to their taunts. Fortunately, Rainbow Dash shows up, ready to even the score.
Indigo Zap and her friends go to the arcade to play games. But their fun is interrupted when a stranger, Aria Blaze, challenges them to play the "hardest" game in the arcade.
At this year's Friendship Games, the Canterlot Wondercolts are determined to beat the Shadowbolts! However, when a new girl arrives bearing resemblances to an old friend, the Mane 6 are thrown off guard.