The mommies feel unappreciated after going out of their way to help their kids and husbands on Halloween. So while they're out Trick-or-Treating, the mommies turn the Larson house into ""The Mommies' House of Horror."" They pull their own pranks on everyone to get evenwith them being unappreciative.

Danny - Carol puts him in a desk chair with a thinking cap and makes him sit there until he writes a thank-you note to his grandmother.

Blake - Force him to talk to a girl he has a crush on.

Casey - Marilyn has Adam do her math homework, and makes her do the corrections, but it's difficult to do since she's dressed as the Golden Gate Bridge.

Adam - Marilyn shows him Tiffany kissing a pizza delivery boy.

Jack - Marilyn makes him put on his wedding tuxedo (to show that time has taken its toll).

Paul - Carol invites her mother to move in with them.