About a month after the events of the Wizard of Oz, life seems to have went back to normal for everypony. Twilight has agreed to babysit her niece, Flurry Heart and she plans on having a great day for the two of them.

However, the Mane Six as well as Flurry Heart are whisked away again to another world where they will have to help defeat a great evil and make friends with a group of mystery solvers and a...talking dog