Doug delivers invitations to his 12th birthday party.
A 'Name Your School' student contest at the new school causes such fierce competition.
Doug joins an exclusive group of highly successful people, then learns how they became successful.
Skeeter decides to spend less time with Doug and more time with someone else, making Doug jealous.
Patti develops an eating disorder.
When Guy asks Patti to a movie, Doug imagines a super-hero battle to win Patti back.
Judy is selected to run errands for a celebrity, hoping to get into a prestigious acting school.
Connie Benge becomes obsessed with winning a local radio station contest and becoming a rock star.
In a publicity stunt to improve his public image, Bill Bluff has Thanksgiving dinner with the Funnies (an "average" family), but Doug thinks there's something else, Mr. Bluff should do.
Patti works on the yearbook, Doug starts collecting things, and Roger impersonates Mr. Bone to get out of detention.
Doug invites Patti to a New Year's Eve party, hoping for his first kiss with her.
When Doug finds out about an upcoming party at the lake, he wants to invite Patti, but an older 8th-grader asks him first.
After Doug crashes his bike into a tree, he competes in a bike race - or does he?
Doug has a once-in-a-lifetime opportunity to spend the day with The beets, then remembers he promised to clean his grandmother's attic, so he looks to Quailman for inspiration.
Skeeter and Patti exchange secrets, then their secrets are made public in time for Doug's big party.
Doug wishes everyone was just like them, then he gets his wish.
Doug blames himself for an accident involving Roger, then imagines Quailman in the same situation.
Students protest after Principal White proposes school uniforms.
Doug gets jealous of Patti's athletic abilities. What would Quailman do?
Quailman discovers an evil plot by an annoying company.
Flounder teams up with Judy for a new band, and Doug's friends find out.
Doug has a history report due, but volunteers to spend time with a cranky woman at a retirement home.
Patti wants to publicly sing about Bluffington despite her awful singing ability, thanks to Doug's lie.
School picture day arrives on Doug's bad hair day. Before trading pictures with Patti, he asks what Quailman would do.
The middle school is abuzz about what's rumored to be the hardest test in the world. But when Doug sees an envelope containing information about the test, he looks to Quailman for inspiration.
Mr. Dink's very expensive gadgets never work, so Doug thinks about what Quailman would say.
The Bluff family invested too much money in a commodity that failed. Adjusting to life as a middle-class family takes its toll on Beebe.
Judy as director forces Doug and his friends to do a Shakespearean tribute to recycling.
When Guy sees Doug's Quailman drawing, a new newspaper feature is born - if Doug can cure his writer's block.
Feeling like "a goody with two shoes", Doug decides to create a wild-and-unpredictable persona during a Hugs For Humanity rally.
An intergalactic leader recruits three supervillains to destroy Quailman.
Beebe wants to ask Roger to a girl-ask-boy dance, even though Skeeter had already dated her. Meanwhile, Patti is sick in bed.
Doug wants a limo to take Patti to a new movie premiere, so he lets Roger use his. Chaos ensues when Roger writes an article about the movie. How would Quailman manage the identity crisis?
Doug learns of the dangers of the Internet after Phil gets a new personal computer.
Doug eschews new tendertoe Todd to beat Roger at a competition, then decides what Quailman would have done.
Doug promises The Beets for an upcoming school dance, then they split over a banana. Doug, left with absolutely nothing, turns to performers of Absolutely Nothing Man for help.
Mr. Mayonnaise has to go out of town for a few days, so Patti stays at Doug's house.
Doug's best friend from Bloatsburg moves to Bluffington, but quickly offends Doug's friends.
In this series-ending episode, Doug reflects on life in Bluffington while looking for the ring he lost in the Ms. Krystal/Mr. Mayonnaise wedding.
Judy gets into her favorite arts school under false pretenses thanks to Doug's drawing skills.
Four years after Mrs. Mayonnaise died, Patti's father starts dating again.