It's Halloween, and the Savage boys are trying to figure out what to do for their annual prank. Kyle feels he's too old for trick or treating this year, leaving Nick and T.J. to go it alone. When Chris is forced to dissect a frog in class, he gets the idea - via a spooky visit from the ghost of the late class frog - of just what to do for their prank this year.

When the boys find out a church carnival is in town, they're all excited to go - each for his own reasons. Jack and Chris devise a plan to pick up on girls who have already entered the fair so they won't have to pay for their admission, and although trying to woo Angela, Sam reluctantly accepts her idea that they can go to the carnival as "friends." Meanwhile, as the boys are causing chaos at the fair, TJ has to finish his school report before he can go, but when he's done, the dog eats the memory stick containing his report... and TJ has a very hard time convincing Nick that the dog really did eat his homework.