Malcolm gets a role in a high school play and starts blowing off his friends to spend more time with his new high school friends.
Caroline Miller (Catherine Lloyd Burns), the Krelboyne teacher, gives birth in the school parking lot when the Krelboynes' model rocket launch goes awry. Hal and Dewey create a LEGO city. At the play, the Krelboynes get their revenge on Malcolm by leaving him there to hang in the high school auditorium, for leaving them to be punished.
- Last appearance of Caroline Miller.