After winning a school science contest, Elroy is invited with the family to view a space shuttle launch. But he gets more than he bargains for when he and Astro get aboard the shuttle and get launched into deep space. They're able to return to Earth, but are significantly changed in an unexpected way.
Elenco: Jean Vander Pyl , Janet Waldo , George O'Hanlon , Penny Singleton , Daws Butler , Don Messick , Mel Blanc , Frank Welker , Tony Pope , Avery Schreiber , Frank Welker , Ruth Buzzi , Allan Lurie , Dick Beals , Chick Vennera , Gregg Berger , Phil Hartman , Lorenzo Music .