Gemini Jack is back in his shop at the Middle Valley Mall, and once again he’s hoping twins Tod and Tessa can help him with problems on his home planet. But Tod and Tessa have problems of their own. The Gneiss twins, once so evil they scared their own mother, are now sickeningly nice. It’s as if the entire balance of the universe has gone kablooey! Then Tod and Tessa use one of Jack’s gadgets to help the great rock drummer, Nigel Throbber, escape from his fame temporarily–only to learn the effects are permanent! Now they need to give Nigel back his celebrity, save Jack’s planet, and convince Nancy Gneiss that she doesn’t really have a crush on Tod. Which makes restoring the balance of the universe look like a breeze. . . .