Quick recap
Todd Barstow is obsessed with worms, keeps a worm farm, and loves using it to torment his sister Regina and her friend Beth. After he cuts a worm in half, worms start turning up in his bed, his homework, even his spaghetti, as if out for revenge. Todd suspects his sister and classmate Patrick, who draws a comic about a worm named Todd. Regina admits to some of the pranks, and his parents decide to shut down the farm. Digging for worms on the baseball field, Todd is dragged underground by a giant mother worm. The girls' papier-mâché robin scares her off. Weeks later Todd has taken up pinning butterflies, and a giant butterfly shows up holding a pin.

