Just outside of the Mystic Ruins, and during what was supposed to be a very basic fishing trip, Big the Cat once again misplaces his beloved pet, Froggy. He predictably embarks on a new adventure in order to once again retrieve his slippery, amphibian friend, but following a brief encounter with Dr. Eggman, he and Froggy are both accidentally teleported into the magical world of Equestria.

Despite all that's recently happened to him, Big still just has only one, simple thought lingering within his head. "Now, where might Froggy be in such a huge, castly place like this?"