A magical mishap by Glomer transports Punky Brewster and friends into the world of the ThunderCats. It's the exciting adventure of a lifetime as Team Punky gets to know the ThunderCats, navigates their way through Third Earth, and gets into trouble of all kinds, especially when it comes to the Mutants and Mumm-Ra. Mumm-Ra learns a secret about Glomer that could change everything.