[WARNING: S5E3 episode synopsis spoilers!] The ponies try to make Princess Twilight's castle feel more like home after finding out she's been avoiding it.
Twilight panics when she discovers that Princesses are expected to have formal dates for Hearts and Hooves Day, so she travels to Celestia for advice, getting a lot more than either of them bargained for in the process.
Many years after the arc of My Little Pony: Friendship is Magic has come to a close, the passing of Twilight’s friends pushes her past the brink of despair.