Calvin is so tired of hearing the babysitter, Stella, call him names like 'Stumpy.' She just won't leave him alone. So, he decides to get even by letting the cat, Zippy, loose in her room leaving all its catness around. Stella is allergic to the cat and her face swells just in time to ruin the big date she was looking forward to. Now, Calvin feels awful. How can he make it up to her? Stella's birthday is coming up and she'd just love a certain cd that costs $18.00. Where can Calvin get that kind of money? This series is set in Hawaii which gives it another dimension.