The Doctor finds out about Derpy's true feelings towards him, but when another companion from a different universe shows up, asking for his help to defeat Discord and in the process Derpy becomes discorded, is it too late for their relationship?

When Twilight finds a book in the old castle's library on palaeontology, she becomes fascinated in dinosaurs. After watching a film on dinosaurs, she discovers that there may be a way of bringing these long-dead creatures back to the world.

Vinyl moved in with Octavia 5 months ago and things have been going great, but when Vinyl's friend Rainbow Dash asks if she can stay for a few days, things are going to get weird.