An evil principal obsessed with spitballs drives a wedge between Jimmy and Craig's friendship, and threatens to kick Robin out of school. Meanwhile, Crocco shocks Golly when he tells him he's not his best friend.
Yancy holds a boy-bashing sleepover, which upsets Jimmy after Robin shows up. Elsewhere, Jimmy's dad takes a space joyride and Dolly loses touch with her feminine side.
Jimmy thinks he sees ghosts in an attic classroom, which Craig spots as a moneymaking opportunity. Elsewhere, Sonny hatches a new plan to get into Jimmy's brain.
A reporter for the school newspaper does a story on Jimmy, but she's secretly investigating Craig and his bootleg soda operation. Elsewhere, Yancy gives Sonny romantic advice.
The boys make an alien-invasion movie and trick Yancy into the starring role. The plan backfires, however, when Yancy's extraterrestrial ex-boyfriend wants a part in the film as well.
Stressed by debate practice and other activities, Jimmy regresses to childhood after falling in with an unsophisticated clique. Meanwhile, in an effort to score money for a new video game, Craig works as a babysitter.
