When Meg stays with Kate and Pete after a break-up, Kate is torn between her friendship and obligations as a wife and step-mom. Meg's criticism of Kate's life causes the long time friends to have a falling out and it's up to Pete to help them work it out. Meanwhile, Warren struggles with the pressures of figuring out his future but gets a glimpse of his true talent when he helps Bert with a Lego project.

Halloween is Jackie and Bert's most favorite holiday, but when Jackie's homemade Iron Man costume doesn't turn out the way Bert had intended, Kate swoops in and hijacks the holiday. Meanwhile, Pete suspects a masked trick-or-treater as the same teenage misfit who egged the house and mooned him last year, so he holds the kid hostage trying to force a confession.