Blueblood is sent to Appleoosa for a month on a "vacation" (read: punishment) with Princess Cadance in tow to keep him in check. He encounters Braeburn.
Time Turner is a watchmaker. He's good at working with the little screws and springs in the tiny devices. Twilight Sparkle's heart is not a watch, but he'll do his best to work on it anyway.
In an attempt to make peace between the changelings and the ponies, Chrysalis is offered a place on the Equus Council. The changeling queen gets more than she bargained for when a certain lunar princess gets involved.....