Derpy and the Doctor are married now, but that doesn't mean Doctor Whooves is going to give up having adventures in the TARDIS. He makes Roseluck his new companion and they leave,sometimes for weeks at a time.

Derpy has no friends in Ponyville since she's always screwing up. Knowing they're won't be anypony in Ponyville, she recalls the time when Pinkie made copies of herself and gets a brilliant idea.