Gracen wonders aloud how his lovely "house flipper" wife, Leila, can afford to buy a $200 designer toaster and how his deadbeat son, Marmaduke, who struts around the house in nothing but his jockeys and a smile, suddenly lands an Internet job making more than his dad. By the end of the day, the guys have their mission: to steal back the respect Gracen deserves by any means necessary.

Laird pretends to be married to impress a girl who's into married men, Dougie believes Aubrey is having an affair when he sees him sneaking into a motel, and Marmaduke suspects that Laird is his father.

When, in a playful attempt to spice up his marriage, Gracen asks Leila whom she fantasizes about sleeping with, she answers "Laird," which creates an issue between Gracen and his best friend.

Leader-of-the-pack Laird loses his stud status when he learns his sperm count is low and Gracen's is high. Meanwhile Dougie is reduced to doing manual labor for Aubrey to score a spot in a pre-school, and Marmaduke navigates the modern day world of bartering.

Laird hooks up with his hot but crazy ex-wife, Joannifer, who disrupts all of the carpoolers' lives. Meanwhile, Dougie and Cindy decide to renew their wedding vows to wipe out the memory of their catastrophic first wedding ceremony.