Doug unintentionally spends all of his money on a video arcade game ""Bag a Neematoad"", when he was supposed to be buying a beetball for a birthday present for Patti. So Doug figures the only way to get a present for Patti with no money, is to make something.

Doug and his friends are all building soapbox racers for the Mt. St. Buster Downhill Speed Race, and they all want to win, and Doug and Skeeter are having trouble keeping their racer a secret. But once the race starts, there's a disaster on the track, and everyone finds out that helping a friend is more important than winning.

Doug wants to go to the Hoe-Down dance with Patti. But when Connie asks him, Doug lies and says he's staying home to take care of his sick cousin ""Melvin."" His lie gets him into big trouble when Patti and Connie come over to visit his cousin. Doug asks Judy to help him out and does such a good job because then, Melvin is invited to the Hoe-Down.

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.

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.

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.

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.

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 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.

The summer is coming to a close and Doug is delivering invitations for his 12th birthday party to all his friends. While he goes all around town, he discovers that Bluffington (as well as his friends) have been through changes. The Honker Burger is gone, Roger is rich, The Beets are breaking up, a new Middle School is being built, Patti is being home schooled in the mornings and Doug needs a hair cut. So many things have changed that it makes Doug sick of changes, so he cancels his birthday. But later, Judy makes him realize that changes makes us different from rocks, and Doug reinstates his party just in time for some shocking news from Theda.

It's the first day of seventh grade at the new middle school which still does not have a name, so a ""Name Your School"" student contest is created by the former Mayor White who is now the school's principal. The contest causes fierce competition between Patti and Doug when they don't like each others school name suggestions. Doug meets all his teachers including his homeroom and English teacher Miss. Kristal, and during breaks, the students realize the school isn't quite finished yet. Also, the gang is on the search for the perfect new hangout since the Honker Burger is now gone.

For a class project, Judy lets Doug borrow one of her theatrical Napolean hats after making him sign a contract. Doug loses the hat and Roger finds it and won't give it back to Doug. In order to get the hat back from Roger, he asks Doug to do many favors including stealing a plastic cow. After all the favors are done, Roger still refuses to give the hat back. Since Doug can't return the hat to Judy, he must suffer the consequences.

After Connie starts a rumour, the students of Beebe Bluff Middle School get into an uproar that Skeeter is really a vampire. Doug and Roger investigate the rumour and soon everyone becomes scared of Skeeter after they see him hanging out with bats. Soon all of his friends avoid him and on the night of his Halloween party, Doug feels guilty for not going to his party without even knowing what Skeeter thinks about the rumour.

Doug finds a lost puppy in Lucky Duck park and he decides to keep it until its owner is found. But the puppy proves to be too much trouble at home. The new puppy may be cute, but he isn't like Porkchop and Doug realizes a regular puppy is a lot of work to take care of. When the puppy's owner is still not found, Doug gives all his friends a chance to own him. Meanwhile, Al and Moo calculate the day an alien is schedueled to land in Lucky Duck Park.

Miss. Kristal assigns a book report with no rules, she tells the class to use thier imagination. At the same time, Beebe is being filmed for a documentary sponsored by her Dad. This means the book reports will be shown on TV, which makes everyone in the class want to have the biggest and best report in the entire class. Doug decides to show some drawings he drew, but he realizes that it's not exciting enough, so he goes on a search to find a book where he can make a more exciting report. But when he doesn't have an exciting report the night it's due, he either has to present his drawings or nothing at all.

Doug begins to worry that the new baby Cleopatra Dirtbike will end up being another Judy, and Judy is afraid she'll grow up to be like Doug. So the two set out to shape the baby's personality. When Phil and Theda go out for an evening, Judy and Doug are left to babysit and don't want the other to be left alone with Dirtbike. But when their fighting leaves Dirtbike alone in Mr. Dink's house, they realize they are going to have to co-operate to get her out.

Doug wakes up the morning after the Flounder's Day Picnic to find that Porkchop has packed up his things and is gone. He concludes that someone must have done something bad to him to make him pack up and leave. So he goes to talk all his friends to question them about what happened to Porkchop the day before.

The lives of Doug and all the other students at Beebe Bluff Middle School become a frenzy when Mr. Bone returns and becomes the middle school's new vice principal. He soon starts throwing Roger into detention and making new school rules. Also, eighth graders invite Doug to join a secret club of the future powerful men of the universe. But in order to be worthy to join, Doug must prove he can be a successful person and it's cutting himself out of monster hunting with Skeeter.

When Guy invites Patti to go to a star-studded premiere of a new movie called Slag & Felpy, Doug feels jealous that Guy took Patti out on a date. In a Quailman daydream, the Golden Salmon appears in Megalopolis, but Quailman isn't sure he's a superhero. Meanwhile, Dr. Rubbersuit separates Quailman's dark side into an evil personality knows as the Dark Quail.

Bill Bluff's public relations firm decides that Bill should have Thanksgiving Day dinner with an average Bluffington family to increase his popularity. Doug's family is choosen and turns their simple Thanksgiving plans upside down. They won't let Patti join their dinner and Judy doesn't like what Bill is doing in preparation for the big dinner. So Doug sets out to make everyone happy for Thanksgiving.

When Doug worries he is only average, he decides that to make his level of importance higher he should be a collector of unusal and (hopefully) valuable items. So he goes to a flea market with a valuable collecters item book looking for rubber tub stoppers and bowls, but someone has already gotten to them. Meanwhile, Roger gets on Mr. Bone's good side to get himself out of detention and Skeeter asks the A.V. Nerds to help him find the Lucy Duck Monster using A.V. equipment.

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.

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.