Eddie panics about the arrival of his school report and tries to stop the post with the help of the monsters. But they are too busy being educated by Kate and Nick, who are desperate to prove who is the brainier parent.

Eddie is convinced that his parents are splitting up and asks the monsters to help him stop his dad running away. But the monsters are too busy reviving their singing group, The Fabulous Monsterettes, convinced that Angela wants them as her backing group.