Castiel recalls how Heaven became a battlefield, and how his brother became his enemy. Meanwhile, his friends suspect he’s working with a dangerous foe.

Rarity is the only one of her friends who survived the cruel tests of Starlight Glimmer, and now it’s time to avenge her friends.

Pinkie isn't capable of handling her secret tasks alone anymore. She's getting older and is losing the young strength she once had. Luckily for her, she lives with two ponies that could be the perfect apprentices.