On his first day at a new school, eleven-year-old Billy goes up against the school bully in a challenge that ends up with a total gross-out date...to eat 10 worms in one day. As the pressure mounts, Billy must summon all his strength to meet the dare, all the while keeping his weak stomach from betraying him and his big mouth from getting him in even more trouble.

They're creepy and they're crawly, they're totally disgusting! Obsessed with worms? That's putting it mildly. Todd is so fascinated with worms, he keeps a worm farm in his basement! Most of all, Todd loves torturing his sister and her best friend with worms. Dropping them in their hair. Down their backs. Until one day, after cutting a worm in half, Todd notices something strange. The rest of the worms seem to be staring at him! Suddenly worms start...