Sam, Dean, and Castiel have been transformed into cats and sent to Thunderclan. Will they fulfill their destinies or will Thunderclan be destroyed? (I suck at summaries..)

The Winchester brothers are back working a case of changelings, but just when Sam discovered it, he falls asleep, and everything spirals out of control. The cats of ThunderClan don't know what to do with this stranger. Dean is lost without Sam. Sam must be restored to his human form, before some demon finds out what happens and destroys humanity.