Roger asks Doug to take care of his cat, Stinky, while he goes on a trip. Stinky not only rips up the Funnie home but also eats all the junk food in the house and gets sick. Doug rushes him to the vet, hoping he'll be OK. But when Doug gets there, he finds out Stinky isn't a ""he"".

Someone has sabotaged the wheelbarrow race at the Bluffington picnic and now no one can be in the race. So, Doug and Patti team up to solve the mystery of who did it and why.

Judy catches Doug breaking a vase that belonged to their mom. To keep her quiet, Doug must agree to be her slave for a week. He suffers until he realizes that the only way out is to tell the truth.

Doug destroys an entire old house in a rock-throwing contest with Roger. But when Patti witnesses the contest she gets angry at Doug, and he has to figure out why.

Doug and Skeeter decide to work together to create their own comic book featuring Silver Skeeter and Quailman fighting the evil Wacky Weather Man.

Doug was only defending himself when he punches Larry the AV nerd in the face because Doug thought he was making fun of him. Now he's popular because of his fight, but Doug can't stand that he punched Larry and wants to be friends again. But everyone likes Doug for it and his popularity could disappear.

Doug is invited to Beebe's party, but something shows up on his that face makes it impossible for him to go out in public.

Phil convinces Doug that he has a great idea to build the perfect kite to compete in the upcoming Bluffscout airshow. But Doug thinks his Dad's idea is too simple, so he changes it thinking it will be better, but he gets surprising results.

Roger and his cat, Stinky, challenge Doug and Porkchop to enter the Bluffington pet talent show.

For a class project, Mrs. Wingo lets her students get to know each other more and Doug is paired with the two people no one else wants to be paired up with, the weird twins Al and Moo Sleech. When it's time for Doug to write his report, the Sleech twins have one already written up for him. But Doug knows he's going to have to visit the Sleech's to get his own facts.

Judy is getting her license, and Doug tells Patti that she'll take them to the amusement park, Funkytown. But Judy fails her test when she can't parallel park, and Doug must help her pass any way he can so he can get that ride from Judy.

For Career Week, Doug is chosen by a computer to be corporate executive in charge of a class project. But he can't handle the stress, until he finds out there was an error in the guidance counselor's computer.

While Mrs. Wingo is away, a substitute named Ms. Newberry takes her place. But Doug makes a bad first impression which places him as the class troublemaker and Roger as the nice guy. So Doug tries everything to change Ms. Newberry's image of him.

Doug and his friends are on the team Patti's Pulverizers, and they are on top when it comes to winning games. But all of the parents, including Doug's dad, think it's unfair that only Patti gets to pitch and they want their own kids to pitch. But after the parents have their way, they realize that it may not be a good idea.

Assistant Principle Bone shuts down the school newspaper because of Doug's unflattering cartoon of the school's least favorite lunch food, magic mystery meat. But all the other students love the cartoon, so they rally to get their newspaper back.

Doug and Skeeter are having trouble finding a scary monster for their homemade video movie, until Mayor White creates a monster of his own with his ""beautify Bluffington"" campaign, which was inspired by Doug's Mom.

Some tough high schoolers offer to sell Doug the very rare first issue of Man-O-Steel Man comic book, the issue he is missing. That same issue turns out to be missing from Sully's comic book store, and Doug feels guilty that he owns the only copy around. But when Mr. Sully only lets one customer into his shop at a time for security reasons, Doug decides what is right for everyone.

There's a new girl in town named Loretta Lequiqly who says she is from Yakestonia and can speak the language. Loretta catches Skeeter's eye and Doug is convinced that Loretta is a liar, and Skeeter is beliveing everything she says. So Doug asks Fentruck to try and catch Loretta in a lie.

Doug wants to raise enough money to buy a new skateboard and sets up a lawn mowing enterprise to do so. Skeeter and the Sleech Twins join in, but they soon feel Doug is being unfair. Doug may raise the cash, but he risks losing his riends in the process.

Everyone in school is talking about the final scene in the latest horror movie, but Doug closed his eyes and missed the ending. After thinking that he's a chicken for not seeing the ending he finally gets up the courage to see the film again, and realizes it's not only not scary, it's silly.

Mr. Bone is in the hospital and Doug unwittingly volunteers to take get well soon cards to him from Mrs. Wingo's class. But when Doug gets there, Mr. Bone thinks he's getting Doug's prized skateboard instead. What's more, the skateboard brings childhood memories to Mr. ""T- Bone"".

Mr. Dink volunteers Doug to dress up as the Big Honkerburger and talk to kids in costume at the Honker Burger for a week. Plus, he has to go to the Bluffington picnic with Patti and be the Big Honkerburger without telling anyone who he is. Doug's busy weekend will be something he'll have to handle all on his own.

Doug and Skeeter are playing with Patti's new Wacky-Wizzer frisbee and accidentally toss into a fenced-in yard. Going in after it, Doug has a near-death experience when he encounters a huge guard dog named Lady.

Beebe gets Doug and Skeeter their first gig for their new band -- but they have to let her join. Now, every time Doug wants to add something to the show he has to let in new members, and it seems they all just want to play the drums.

When the Bluffington School float for the upcoming Beet parade goes missing, Doug is accused of helping the Moody School students steal it. So Doug and Porkchop must sneak into the Moody School to see for themselves.

Doug tries to impress Patti with a magic trick from his new magic set, but it backfires and they end up handcuffed together, without the key, for the entire afternoon. This does not sit well with Patti as it makes her miss planned activites. After many attempts to get the key, they realize the magic store owner may have a solution.

Doug gets a letter from his school and panics when he sees it's addressed to his parents. Since he's doing poorly in math, Doug immediately assumes that it's a failing notice! So he does everything to find out what the letter says and avoid his parents from seeing it. If that wasn't enough, Patti is trying to tell Doug something and get her message to him.

It's the day of the big football game against Bloatsburg and Doug is snared by Coach Spitz, who mistakenly believes Doug has a ""golden toe"" for field kicking. Doug is then put into the next footbal game by Coach Spitz, and he is very nervous when he finds out that Percy Femur is on the other team.

Doug is accused of cheating when he and Chalky score identical marks on a test. He is given one day to confess or he'll have to take a re-test. Doug knows he didn't cheat so he tries to talk about it with Chalky, but he keeps avoiding Doug.

Patti asks Doug to go with her to the movies, and now everyone at school is teasing them about dating. Even Doug wonders if it is really a date or not. In order to find out, Skeeter goes through dating scenarios from a book with Doug.

Doug's Bluff Scout Troop #617 has to raise money for new canoes, so they sell ""Bluff Scout Booster Bars"" door to door. But after being rejected by everyone, Roger offers a new way to sell the bars, which Doug doesn't agree with. Then when Doug sells a bar to Mr. Swirly, he realizes the problem of why the bars taste so horrible.

Over the weekend, Doug puts on a few pounds at Grandma Funnie's house and has been invited to Beebe's pool party. Doug is so embarrassed to be seen in a swimsuit, so he decides to work the extra weight off before the party using Ronald ""Prepare to Suffer"" Weisenheimer's videos.

A/B) When a spooky new amusement ride, Blood Stone Manor, opens up at Funkytown on Halloween night, Skeeter wants to check it out instead of trick or treating. Doug reluctantly agrees to go, but when the park closes before their turn comes up, Roger convinces them to go on the ride anyway. Once on the ride, Roger scares Doug and Skeeter big time, so it's up to them to scare Roger back!

Doug wishes he was more fashionable until his friends at school accuse him of dressing like Dylan Farnum from the TV show ""Teen Heart Street"". He's tired of being told he's copying someone else's style, so he decides to shop for a new look.

Doug becomes the victim of a contest scam that promises to make him rich. But after trying so hard and paying a lot of money, Doug later realizes he may not be as close to winning as he thinks.

Doug is impressed by Mr. Bluff's gifts to Beebe. Phil feels pressured to make more money for a better birthday present for his son, so he decides to start his own photography store. At first, Doug is excited by the thought of more money, but when he sees the effects on his father and their family, he realizes that money can't buy happiness.

After performing a magic trick, Doug becomes adored by a third grader named Todd Bentley, who starts to follow Doug everywhere. Soon Doug is embarrassed by all the attention Todd is giving him, and tells Todd to leave him alone, which upsets Todd and leaves Doug feeling guilty.

Doug is nominated for class treasurer, and when he finds himself running against Willy White, the mayor's son, he starts making promises to his voters he knows he can't keep. Meanwhile, Tippi Dink runs for Mayor of Bluffington and wins!

Doug beats Patti in a bowling match, and Skeeter tells everyone about it. Doug gains popularity, but feels bad about beating Patti everytime they play a game. It seems Patti is having a losing streak and is upset about it.

Doug and Skeeter go digging for artifacts when they get assigned to research Bluffington's history. They soon get into trouble though, when they are caught digging on the Bluff estate even though they didn't know.

Skeeter gets a high score on an intelligent test making him a genius, and Doug is convinced Skeeter got the wrong test results. But soon Skeeter starts to spend less time with Doug and more time thinking about going to college, and Doug thinks he's lost his best friend.

All of Doug's friends have cool bikes, but Doug hates his--until he discovers that someone has stolen it. He thinks about who could have taken it, and wonders if one of his friends is a theif.

Doug and Judy get into a fight and blow their big chance to stay alone in the house while their parents are on vacation. Instead, they're cursed with the very, very strict baby-sitter, Mrs. Stintson.

A/B) Porkchop has been mistakenly accused of attacking Beebe and Doug has to try and clear his best non-human friend out. Unfortunately, former Mayor White, and Bill Bluff are determined to make sure that Porkchop never bothers anyone again. After a trial in court, Porkchop is sentenced to a dog pound for bad dogs. Then, Doug convinces the court to let Porkchop return to the scene of the crime to show them what really happened.

An envelope of money falls from a speeding car and Doug finds it with a huge fortune in it. Doug hands it in to the police and everyone makes fun of him for doing it. After no one claims the money, the police tell Doug he can keep the money. When Doug discovers who the real owner is, he must choose between what's legal and what he knows is right.

Theda invites Judy's new boyfriend over for dinner, but Judy is embarrassed by her boring family, especially Doug. So she decides to ""spruce"" things up around the house.

Doug is having his first house party, and he is very nervous about it--especially when he sees how his parents are planning for it. But when Roger suggests to play Truth or Dare, Doug hopes it makes his party better.

Skeeter exaggerates about how Doug can ride on a horse and Doug lets his friends believe the lie. But then Roger challenges Doug to show them, and Patti suggests they all go to a dude ranch to settle the argument. Since Doug can't ride a horse very well, he's nervous about going to the ranch.

Doug and his friends are getting ready for the end of sixth grade and are graduating from Bluffington School. Doug feels a bit sad about leaving so he tries to find Principal Buttsavitch to talk to him. But when he finds out that Roger is as reluctant to leave the school as he is, Doug convinces Roger (and himself) that the new school will be great.

As the summer begins, the Funnies plan to drive across the country to visit the Great Painted Gorge. Phil is committed to keeping to a schedule, but Doug and Judy convince him to stop at several tourist traps along the way. The family isn't having any fun on the trip, until they finally reach the stop that makes it all worthwhile.

One of Doug's New Years resolution is to tell Patti how he feels about her. But when Doug realizes he hasn't done that yet, he decides that giving her a kiss at Beebe's New Years Eve party will do it. So Doug rents movies and uses balloons for practice. At the party, midnight is approaching and Doug finds out that Patti left Beebe's party to go to other parties with Guy. It looks like Guy had the same plans for Patti as Doug did. Meanwhile, Roger tries to break his own record of how many girls to kiss at midnight and Judy hates all the New Years celebration.

Popular eight grader Cassandra Bleem asks Doug to be her date at the upcoming Bluffington Blowout Bar-Becue and Beach Bash beach party and he does everything to prepare to be cool in front of Cassandra. Meanwhile, the Sleech twins try different kind of ways to get dates for the beach party.

Doug is practicing for the Rudolph Bluff Memorial Bike Rally, where he is on Patti's team and they are determined to beat Roger's team. But after Doug has a bicycle accident, he breaks his leg and once it heals, he is afraid to get back on his bike. His fear won't let him practice or even ride in the rally, and if he doesn't overcome his fear, it would let Patti and the team down. Meanwhile, Doug learns about Mr. Dink's phobia of beans and how he has tried to overcome it.

Doug, Patti and Guy are invited to see The Beets recording a new record in Bluffington, but Doug promised to clean his grandma's attic with his Dad. As he cleans, Doug escapes into a daydream about how goofy Quailman's Dad is against the Golden Salmon. Back to reality, Doug finds out that his Dad was in a band in the 70's and when he drops Doug off at the recording studio, they learn that the Beets need a replacement drummer for a song. When Phil steps up to take the job, Doug just hopes he won't be embarassed.

Patti and Skeeter comment about how great Guy's weekend party was which makes Doug decide to have his own party. At school, Patti and Skeeter accidentally get locked in a janitor's closet after doing a favor for Miss. Kristal. While being locked in, they share a secret and promise each other not to tell anyone else. But somehow Roger finds out and he tells the whole school about Patti and Skeeter's secrets, which leaves the question of who spilled the secret. Patti thinks Skeeter told, and Skeeter thinks Patti told. The two friends become so angry at each other, that Doug has to try to get them to be friends again before his party.

Beebe is having a Halloween party with a costume contest. After Doug's homemade Lucky Duck monster costume is destroyed by Dirtbike, Doug needs help for a new Halloween costume. So he goes to Skeeter, Judy, Mr. Dink, and Roger for help, but Doug can't believe they are all too busy to help him. Later, Doug can't believe that people all over town are turning into Doug clones!

While Chad is out of town, Patti comes to stay with the Funnies for a week and Doug worries she will realize that he is just an average guy. So he tries to be someone else in front of Patti in order to impress her. Meanwhile, Al, Moo, and Skeeter build a submarine out of junk to look for the Lucky Duck monster.

Roger blames Doug for hitting Mr. Bone with a football, which sends Doug to detention. Roger then pretends to break his ankle and again blames it on Doug. Feeling guilty, Doug then becomes Roger's servant. In Megalopolis, Quailman thinks he is to blame after Dr. Klotzenstein's Funky Pumper stops working after Quailman uses his Quaileye on him. He decides to go inside his body to cure him, but soon finds out the real cause of Kloztenstein's illness.

A new change is coming to the Beebe Bluff Middle School... school uniforms! But all the students don't want uniforms so Sally rallys Patti, Roger, Fentruck and Beebe and forms a protest group. But after Principal White and Vice Principal Bone don't listen, Sally stages a student debate. But Sally ends up losing her voice, so Patti has to take over the debate. But it seems the power has gone to Patti's head. Meanwhile, Doug and Skeeter wonder what to do for their Civics class report.

Patti is better than Doug at every sport they play, and Doug wonders how he will ever impress her. So he daydreams about how Quailman would try to impress a new superhero who arrives in Megalopolis named Supersport.

Flounder wants to start a new group and talent searches in Bluffington. When he sees interest in Judy's ""music"" he starts dating her and Doug gets three tickets to Flounder and Judy's upcoming concert. At school, Doug becomes popular because he promised 20 tickets for 20 people, but he now has to risk his popularity in telling them only two tickets are available. Meanwhile, Theda gets a makeover and wonders if she should keep her new look.

The S.T.U.A.R.T. corporation's faulty products are making citizens in Megalopolis uncharacteristically short-tempered. Quailman has had enough of the faulty products, so he and Silver Skeeter set out to find the leader.

Doug volunteers to spend time with the residents of the Maturing Meadows retirement home. He meets Mrs. Whackhammer and doesn't make a good first impression (or a second impression). Doug turns to Quailman, to see how he would handle a monster who turns the citizens of Megalopolis grouchy.

Judy auditions for an acting admission to Vole University, and she accidentally hands in Doug's doodle to the Dean. Judy ends up accepted to Vole, but only because of Doug's doodle. Judy is okay with it until the Dean asks her to draw examples for a class. Meanwhile, Doug tags along with Judy and finds out what he really wants to do with the rest of his life as he waits for the results from a drawing talent contest.

Everyone at Beebe Bluff Middle School is worried about the upcoming mysterious S.P.I.T. tests. If they fail, they could be sent back a grade... or so the rumour says. Then, Doug bumps into Mr. Bone who leaves behind the S.P.I.T. test folder. If Doug takes a look inside the folder, he can tell his friends what's on the test. Doug wonders if thats the right thing to do, then turns to Quailman. In Megalopolis, the Quizzler is stealing information and words all over town and Quailman must set everything back to normal.

In preparation for Bluffington Pride Day, the contest to write the official Bluffington Anthem is on. Patti has written the perfect song, the only problem is she can't sing to save her life. Doug lies to Patti about her singing which leads to her entering the contest and Doug has to tell the truth or convince Patti to drop out of the singing contest because it would only embarass her.

Doug's old best friend Bobby Bodingo is moving to Bluffington, and Doug can't wait to show him around school and introduce him to his friends. But Bobby just isn't the same as he used to be, he's rude and crude and even makes Doug go in the girl's bathroom. As a result, all of Doug's friends don't like him and won't spend time with Doug if Bobby is around him.

Mr. Dink is always busy with several gadgets and he's too busy to give Doug his Bluffscout ""snoarking"" badge test. So in a daydream, Quailman tries to help his friend Professor Quint in his experiments. But the Professor always fails because, he's always busy with so many different things. Quint thinks he'll succeed in crime insetad of science and Quailman must set him straight. After his daydream, Doug uses Quailman's actions on Mr. Dink.

Doug always manages to have a bad hair day on school-picture day. So when school-picture day comes around again, Doug douses himself with hair-care products to prevent bad hair. Meanwhile, he daydreams how Quailman would handle a bad hair day, as an evil shampoo from the S.T.U.A.R.T. company is taking over the hair of all the citizens in Megalopolis.

Beebe Bluff's family is penniless due to heavy investments in the Yakestonian snoozegraffle crop, which gets completely destroyed due to a storm. Also because of the destroyed crop, Fentruck's family can't support their son overseas and will have to send him back home if he doesn't raise enough money. Doug, Patti and Skeeter try to save Fentruck from leaving and show Beebe that you don't need a lot of money to have a good time.

Judy forces Doug and his friends to do a Shakespearean tribute to recycling instead of a fun play they came up with on their own. Meanwhile, in Doug's daydream Judydra is turning everyone in Megalopolis into performance artists and Quailman (along with the League of Ultra Buddies) must stop her.

Patti worries her Dad, Chad, is dating Edwina Klotz, so she does everything, including eating at Chez Honk to find out. Doug and Patti discover Chad is dating someone, but it's not Edwina. When she has dinner at the Mayonnaise's, Patti feels she is trying to replace her mother. Meanwhile, Doug finds out the truth about what happened to his pet goldfish as a kid.

Quailman is finally getting recognition. Doug has been offered to draw a Quailman comic for the school paper, The Weekly Beebe. But the night before Doug's Quailman comic is due, Doug has not begun drawing. Meanwhile in a Quailman daydream, Quailman has lost his powers and feels he can't save Megalopolis without them, which allows Dr. Rubbersuit to steal all the beets in the entire city.

Convinced that girls like rebels, Doug decides to cut school during an assembly and have a wild adventure with Skeeter. But Mr. Bone finds out and although he can't tell who is cutting school, he is determined to hunt down the fugitives. Doug and Skeeter go to the mall, Swirly's and the park and find out that cutting school is not as wild as they thought. When their boring adventure is over, they return to school only to find out that Patti doesn't like a real rebel.

An alien being named Generalissimo Twang tries to convince the three evildoers Dr. Klotzenstien, RoboBone and the Golden Salmon that they can defeat Quailman if they work together.

Roger gets Doug to teach him how to be a gentleman in order to get Beebe to ask him to go to the Bumpkin Day Hoe-Down Dance with him where the girls ask the guys. Doug hopes Patti will ask him, but she's sick and Doug is afraid she'll ask someone else once she's better. Also, Skunky shows his friends that he has webbed toes which is distracting everyone in gym class, so Coach Spitz forces Skunky to cover up his toes at all times.

Even though he knows he is not supposed to, Doug loans Roger his school newspaper press pass so Roger can get into an early screening of a movie. But after Roger gives a bad review of the movie to the press wearing Doug's press pass, Doug has to confront the consequences. In Megalopolis, the Kabrain twins help Quailman turn into Rubbersuit to learn more about him. But when the real Rubbersuit finds out about this, he visits the Kabrain twins to get them to change ""Rubbersuit"" back into Quailman.

While surfing the internet on the Funnie family's new computer to find music for the upcoming retro dance, Doug and Skeeter encounter Webster, a 'kid' they agree to meet to exchange some records. What the boys don't know is that Webster is really 'Friendly Frankie,' a rather unscrupulous adult. Instead of meeting them, however, Webster/Frankie creates a distraction and steals their records. Horrified, Doug and Skeeter go back online and find similar records for sale at Friendly Frankie's Used Records. At the store, when the boys try to talk to Frankie about their records, Doug and Skeeter find themselves in a bad situation. Meanwhile, Judy is online in the 'Bluffington's Pretentious Artists Chat Room,' where she meets a guy who uses the screen name 'Leonardo D'Warhol'. Believing she has met the man of her dreams, Judy arranges a meeting in person only to discover that Leonardo is not quite the man she expected.

Doug is horrified to find out that Todd Bentley is going to be on his team for the Bluff Scouts hike. Doug imagines Quailman having to teach Quailkid how to be a super hero. The only problem is that he'd rather discover why things all over Megalopolis are being stolen. Quailman finds out Rubbersuit is behind it, along with his Little Rubber Army and Quailkid wants to join.

For the final school dance of the school year (the Spring Fling A-Ding), Doug tells his class he can get The Beets to play at the dance, but they suddenly break up again after fighting over a banana. Meanwhile, Phil's old band members visit the Funnie's and they decide to play at the dance when Doug invites them. But after Doug hears their horrible practice session, Doug has to decide if he should fire his own Dad from playing at the dance and embarassing himself.

In the series finale, more changes in Doug's life are underway as Judy prepares to leave for college and Doug's voice begins to crack. Seventh grade is over for Doug and his friends, to start off the summer Chad Mayonnaise and Miss. Kristal are getting married. Principal White is performing the ceremony and Doug is asked to carry the wedding ring, but while paying for frothy goats he accidentally loses it. Convinced he gave the ring to Mr. Swirly, Doug and Skeeter ride all over town to try and find him and the ring before the wedding starts. Meanwhile at the church, Mr. Bone and Mr. Fort argue over who should get to play at the wedding, Judy complains the stage she is performing on is too small, and one of Mr. Dink's very expensive machines goes crazy. If that weren't enough, Roger's wedding present lands on top of the reception tent causing the tent to collapse, and Principal White faints as soon as the wedding starts. After the happy couple is married, Judy drives away towards Vole,