As Doug is about to break what was once thought of as an unbeatable record, the tension between he and the guys at IPS mounts. For 18 years, Iggy Stenkowski's record of 951 consecutive perfect delivery days has remained intact, and the guys resent Doug as he's about to beat it and replace the legendary Iggy's plaque with one of his own. As he deals with his internal conflict, Carrie has trouble dealing with the fact that Holly, the dog walker, actually enjoys spending time with Arthur. She starts to wonder if her father really is as great as Holly thinks he is and that maybe she's the problem in their relationship.

Doug's parents visit while Carrie's on a business trip and take over running the house, making Doug feel like a kid again. Also, Arthur tries to strike it rich by inventing a new type of screwdriver called "the Arthur's head."

Carrie thinks Doug needs professional help to control his excessive eating habits, so she persuades him to see a therapist. When Carrie sees Doug's great inprovements, she asks the therapist to work on Doug's other issues. Meanwhile, Arthur believes he's addicted to nasal spray and fights to stay off of it.

Doug becomes obsessed with his own Super Bowl party after learning that many of his friends will be attending a party thrown by a new co-worker. While Doug is focused on winning back as many guests as possible, Carrie complains that Doug doesn't think about her enough during the day. Problems arise when Doug tries to throw the ultimate Super Bowl party and prove to Carrie he's an attentive husband.

Doug finds it unbearable working with Carrie when she takes a temporary job at his company during the holidays. Arthur tries to get various friends to pose for a Christmas card picture with him.

Doug's position as the "Funny Guy" is threatened, when IPS' new employee wins over the workforce with his impersonations. Meanwhile, an assistant is hired to work for Carrie, and ends up performing more work than expected.

Doug's karaoke performance gets him an e-mail stalker.