Baxter's first mission is to locate a missing Aquarian ship that has been taken over by a group of aliens whose aim is to subjugate Earth by "entertaining" its citizens to death. His second mission is to rescue a beautiful blue-haired Aquarian princess, known affectionately as "Your Highness." Baxter is assisted in his missions by his able but peculiar shuttle crew-an enormous girl who's a mechanical genius, a small, extremely klutzy math wizard, a genetically modified chimpanzee, and a nit-picking, overly sensitive computer.