While working in the garden, Marigold Fairy and Butterfly discover that something is eating all the carrots.

High school senior and pest control technician Hallie Mayhew is desperate to trade her home in Santa Barbara for any east coast college that will take her away from her divorced, bickering parents and her dad's extermination business, but she fears that a rigged scholarship competition, wily thieves, and the handsome boy next door will contrive to keep her in California.