In a castle in Spain, Neville Savage has managed to get hold of Sir Joshua's latest invention, the Duplivox Mark VII, a device which allows one to perfectly transfer the voice of one person to another. He tests the device by capturing the singing voice of a young opera singer and transferring it to a dog, immediately making it a public spectacle when it runs away -- it also alerts Centauri to Savage's activities. The Centauri members attempt to warn a famous opera singer of the danger Savage poses on his visit to Australia but their warning isn't heeded allowing Savage to kidnap the singer and his son along with Kat.