Doug and Carrie feel that they are ready to become parents. Their only problem is that Arthur is always around, and never gives them any time to themselves. Doug hires a dog walker named Holly to walk Arthur for a couple hours. Arthur does not know that Holly is a dog walker. Carrie uses the time for her own personal pleasures. Doug hates that she is not paying enough attention to him with the time he is buying. Eventually, Arthur finds out what Holly does. Eventually, Arthur and Holly become good friends. Written by laffalott1

For Carrie's birthday, Doug decides to get her laser eye surgery. Doug brings her to the place, and the surgery is a success. The next day, Carrie wakes up to blurry vision. The next day she wakes up to the same thing. Doug calls up the doctor and asks if these symptoms are normal. The doctor says they are not normal, and Doug is now very nervous. Carrie finds out that Doug went to a cheap place, and used discounts. Written by laffalott1

Doug is ready to break the IPS record of most consecutive day without a broken package, or complaint. While he is ready to break it, his co-workers are not so excited. The old timers are not happy with Doug because he's going to break the record held by their old friend. Even Deacon is mad at Doug, because Doug broke one of Deacon's packages years ago. On the last day, Doug has to deliver light bulbs. He has to go up stairs to deliver them, but can not because the stairs are wet with paint. Doug has to throw the bulbs up or the company will call Doug's supervisor. It all comes comes down to a climactic choice to throw the bulbs up or get in trouble from his company. Written by laffalott1

While going to the movies, Doug and Deacon pass a strip club. Doug is distracted by Deacon's comment about the strip club and rams his car into the back of Deacon and Kelly's car. The Palmers ask the Heffernans for twelve hundred dollars. Even though the car did not cost that much to fix. The two couples are now in a feud. Doug then tells Carrie about what Deacon did that night. Doug and Carrie get the Palmers back by buying their son Kirby a drum set for his birthday. Written by laffalott1

Carrie brings Doug to her company retreat for the weekend. Carrie tries to get Doug to look like a successful person, but he puts on a bad show. Doug tells Carrie that he will try to work harder to her get a promotion. He even tells one of the senior partners that he climbed Mt. Everest. Written by laffalott1

On Halloween, Doug buys a pumpkin for the tricker treaters. Arthur comes in the kitchen and smashes it. Arthur has banned Halloween from the Heffernan household. Doug goes back to the shopping center to get a pumpkin and a whole bunch of other Halloween decorations. When Arthur sees this, he has a small heart problem. Arthur has become very angry at Doug. He tells Doug that when he was a child, his father made him trick or treat for hours just to get pennies. That is why Arthur hates Halloween. Doug makes it up to him by getting him a childhood sweet treat at a local pizzeria. Doug and Deacon search for hours to find this place Arthur use to go to get the treat. Doug gets it, and makes it up to Arthur. Written by laffalott1

While Arthur is in the hospital getting Angioplasty, Carrie and Doug go through his room to find his sleep mask that he requested. Carrie finds an acceptance letter from Florida State University. She knows that he kept this letter from her, so he would have a better life. Before Arthur goes in for surgery, he tells Carrie that he never told her about a phone call from her boyfriend in high school. In the meantime Doug has become an emergency contact to a man he delivers to named F. Moynihan. Written by laffalott1

When Arthur comes home from his operation, Doug and Carrie decide to install a nanny-cam to watch over him. While getting a life insurance plan, Carrie decides that if she unexpectedly died, Arthur would continue to live with Doug. Doug really doesn't like the idea. In the end, Doug, Carrie, and Arthur find that being together is more important then finding out who gets stuck with who. Written by laffalott1

This episode is set before Doug and Carrie's marriage. Carrie is very nervous to be married to Doug. She can not stop vomiting. When the two meet with the priest, he remembers that Doug and Carrie met at camp as kids. When Doug tells his family, his cousin Danny says that it wasn't Doug that Carrie fell on, but it was him. Doug was at fat camp that year. In the meantime, Arthur can not pay for the wedding and lets Doug's parents pay. He spends way too much money. Doug can not get the courage to tell Carrie the truth about the story. This story is the only thing that makes her feel comfortable. Can Doug work up the gall to tell his wife the truth? Written by laffalott1

When Doug and Carrie's plane makes a rough landing, Doug takes the oxygen mask all for himself. However, their plane was on the ground. Carrie is upset that Doug would not help her if she was in danger. Now Doug is trying his hardest to think of a time when he helped Carrie. Meanwhile, Spence moves in with Doug's cousin Danny. Written by laffalott1

Carrie's boss requests her to get Doug to be an expert witness in a court case, however Carrie feels unsure on how he will do. Spence and Danny have a house warming party because they just moved in together. Danny meets Holly he wants to ask her out, but Spence says he can't. Written by Anonymous

It's Christmas and Carrie get another negative pregnancy test. So Doug and her go to a fertility doctor and they find out the reason they are having trouble is because Carrie only has one Ovary working. The doctor also tells them that they have a few fertile days coming so they should get going. The only problem is Doug's parents are coming to visit for the holiday. Written by Anonymous

Carrie grows jealous when Spence's girlfriend recruits Doug to test her culinary work.

Deacon asks Doug to come along to Atlantic City for a weekend. Carrie wants to go salsa dancing with Doug but concurs and they go to Atlantic City. However, Deacon has send a message that he won't be coming. Doug's boss on the other hand, did come to Atlantic City and Doug and Carrie don't seem to get rid of him. Written by Marco van Hoof k_luifje7@hotmail.com

Deacon and Kelly are still separated and Doug takes a very depressed Deacon to some clubs. Doug really gets in the groove and makes a habit of it, with or without Deacon.

When Doug and Carrie find an old check in a wedding present, they need to invite Doug's annoying relatives to write them a new one. The Heffernans plan on going to New Orleans with the money. However, Doug's relatives say that New Orleans is their town, and tell Doug and Carrie not to go without them. Doug and Carrie get to the Big Easy, but can they get back without them knowing. Written by Laffalott1

Carrie's work has an annual golf trip, but Doug and Carrie used to always take Deacon and Kelly. Now that Deacon and Kelly have split up, Doug and Carrie have to try and find another couple to invite to the golf trip. But Deacon later meets a woman and now he can go on the trip and bring his new girl friend along too. Carrie meets his girlfriend and has a hard time clicking with her. Holly agrees to watch Deacon's kids, but she has to bring a reluctant Arthur along. Written by Anonymous

His uncle Stu seems to like Doug much more than he likes his own son Danny and when Doug tells him it's his dream to own a sandwich shop, uncle Stu buys him a property to start his business. Carrie however, doesn't think Doug can run a business but because she already said she believes in him, she has to find somebody else to talk Doug out of it. Written by Marco van Hoof k_luifje7@hotmail.com

Carrie goes on a business trip to Chicago when Doug's parents decide to come for a week trip. When Doug is at work his boss tells him and his fellow IPS drivers that they are going to have to take a test on the job. Doug is worried about the test and not knowing how to take care of his parents. But Doug's mother makes it easier by taking care of the household and Doug. Doug begins to feel young like a teenager again. Written by Anonymous

Carrie starts joining a colleague for after-work cocktails and Doug realises she's less abrasive when she returns home. When Carrie has a row with her co-worker, Doug and Arthur conspire to keep her a little tipsy - until neighbour Lou spills the beans and she's even angrier than ever. Written by Steve Green

Doug and Spence have a high school reunion, but Spence doesn't want to go because he had a relationship that ended really badly. Doug is looking forward to it, until Carrie starts wearing a new hairstyle, which is a tight bun that looks like a librarian's hair. So now Doug is afraid that she will wear her hair like that to his reunion. Written by Anonymous

Doug and Carrie find out that they are selfish people. They never give to charity or help people. They decide to give money to help Deacon's sons school library. They give enough money to become patrons. However, their names do not appear on the plaque as patrons. Carrie wants to get her name to patrons, while Doug does not care. Who is right: Doug or Carrie? Written by laffalott1

Doug and Deacon bet 100 dollars on a fight that they are not allowed to bet on. They win 5,000 dollars, and have to get rid of it quick or Carrie will know Doug disobeyed her orders not to take the money. Doug and Deacon decide to take off from work for a whole day and spend all the money. The money is spent on fancy dining, expensive cars, and a live living room performance by the 'money man' Eddie Money. Written by laffalott1

Doug has a bad tooth and decides to go to Deacon's dentist. But when Doug finds out that Carrie and the dentist know each other, he feels that the Dr. is hurting Doug on purpose out of jealousy. When Deacon wins a poker game over Arthur and Arthur doesn't have the money he promised him, Arthur tells him that he will give his son free piano lessons. The only problem is that Arthur doesn't know how to play the piano. Written by Anonymous

The fourth season concludes with Arthur visiting a psychiatrist and recalling via flashback a disturbing encounter with his dad that may explain Arthur's abrasive personality. Carrie and Doug decide to validate Arthur in everything he does. This leads to Carrie visiting the psychiatrist, who also has a flashback that makes her doubt her personality. Which leads Doug to also visit the psychiatrist and has his own flashback that makes him learn something about himself. Written by Evie