Ned and Cookie are initially bored as they learn to play musical instruments; Moze gets Mozart stuck in her head. Later, the kids look for a new class clown.

A mean science teacher motivates Ned to try to win this year's science fair, at which Cookie tries to win the approval of his ex-girlfriend's grandmother. Later, Ned has an important test to prepare for during study hall, while Cookie looks forward to a romantic rendezvous, and an injured Moze endures the embarrassment of having to wear a traction harness.