With Doug and Carrie moving towards divorce, there are only two options. On a flight to China can they come together to make a double or nothing bet?
Carrie discovers that their Chinese baby is ready for adoption, but Doug wants to end the marriage because she didn't give up her apartment in Manhattan. Meanwhile,Arthur is forced to find a replacement bride for his wedding.
Carrie moves to Manhattan but Doug refuses to leave the house in Queens. Ultimately they find the one thing that will keep them together--or so it seems.
Carrie wants to move to an apartment in Manhattan, but Doug wants to stay in Queens. Their impasse makes them realize they have very different ideas about their future.
It's Doug's high school reunion, and he's going "Stag", while Carrie relaxes at home and tries to watch a movie with Arthur.
After almost running over a chicken on the highway, Doug becomes more animal-sensitive and decides to become a vegetarian.
When Deacon and Kelly buy a vacation home, Carrie is upset because they could have easily afforded it, but they were too cheap.
An unflattering picture by Major prompts Arthur to ask Doug and Carrie for braces. Meanwhile, Kelly hires an out-of-work Spence to help out around the house.
Doug adopts a dog at a block party to look like a better person, without telling Carrie. After Doug turns the dog into him (lazy) the couple tries to find a way to get rid of it.
Deacon and Kelly don't want Doug around Major anymore after he inadvertently scares him, and Arthur begins a new business selling senior citizen services to carpoolers.
Carrie gets upset because one of her fellow secretaries "steals her moxie" and gets a promotion, and everything at IPS falls apart after Doug temporarily takes over the office.
Things get out of hand as Doug frantically tries to stop a woman who claims to have spent a romantic weekend with him from calling the house.
When Carrie insists that Doug figure out how to invest their tax return check, Doug decides to buy an ice cream truck from a stranger.
Carrie is finally fed up with Arthur, so she decides to put him in a retirement home. Doug, of course, is excited but after a touching story told by Arthur, Doug tries to decide whether or not Arthur should go.
Doug befriends a driver from one of IPS' competitors, but eventually discovers it's just a ruse to make him the butt of a joke.
Doug crashes Carrie's weekend company retreat, not realising she's blown it off for a relaxing day with her girlfriends.
Doug and Deacon discover they have more in common with each other's wives than their own, so they start hanging out with each other's wives as well.
It's Doug's 40th birthday and Carrie begins to try to make Doug realize that he should start wanting to do more with his life. So Doug decides he wants to ride a roller coaster that he was to afraid to ride when he was younger.
While they're having dinner at a restaurant a man who's in wigs tells Doug Carrie's hair is worth $3,000 dollars.
On the party for their eleventh anniversary, Doug and Carrie get a portrait of the two of them from Deacon and Kelly. They dislike it so much they stage a fake robbery to get rid of it.