Lil is invited to a party with all of the popular kids from school, provided her brother Phil does not come with her. This newfound attention prompts her to want more independence from her twin, while Phil struggles with not having Lil in his life. When the other kids make fun of Phil at the party, she stands up for him, realizing how close to her brother she really is.

Meanwhile, Chuckie struggles to complete the President Fitness Test and resents the embarrassment of gym class, taking a stand by faking illnesses and hiding out in the boys' bathroom.

Tommy enters a film contest which is to be judged by his favorite director, Martin Costomiris, but after his attempt to make a sci-fi film starring his friends does not work, he is drawn to their secret conversations they have unaware were being filmed. Despite Dil's objections, Tommy starts recording more of his friends in secret, who all, except for Chuckie, become outraged and they refuse to talk to Tommy if he intends to enter their private moments into the competition. In the end, Tommy re-cuts the film with bloopers from his first attempt at making a movie and clips of the gang as babies, this time showing them in a more positive and proud light.

Meanwhile, vice principal Pangborn spends time observing and analysing Dil's behaviour and recommends to Stu and Didi that Dil have some counselling. Didi is outraged that Pangborn would consider that for her son and praises Dil for seeing the world differently. Dil is later reassured by Didi that she thinks his personality is what makes him wonderful and Pangborn learns that being different is not all that bad.

Chuckie is concerned when Kimi hits it off with school bad boy Z, roping the gang into investigating Z which leads them to believe he is a thief. When they try to tell Kimi she is unmoved and sneaks off, eventually found helping Z load merchandise into a truck. Chuckie confronts Z about being a thief and Kimi explains that he has actually been raising money for charity. Kimi is initially angry for her Chuckie not being trusting, but Z encourages Kimi to forgive him as he was only looking out for her.

Meanwhile, Angelica reluctantly lets Harold take over her online advice chat for the night. Harold finds he enjoys helping people and Susie helps him set up a rival online chat, which proves more popular until the emotional burden becomes too much for Harold and he decides to give it up in favor of Angelica's.

The gang are out to buy concert tickets for the Spring St. Patrick's Day Concert with University of Mary Concert Band. After seeing the attention Dil is getting over his Belt-quarium (a belt with a fish inside) they recruit him to invent products they can sell to raise the cash. The need for new ideas causes Dil to have a breakdown and puts a strain on his and Tommy's relationship when he feels like he is being used. Angelica, also trying to earn money for the spring st. Patrick’s concert herself, copies all of Dil's inventions but her duplicates do not sell as well.

A talent scout offers Susie the chance to become a pop star, provided she can cover the $1,000 cost of recording a demo. Susie convinces her older sister Alisa to lend her some money she has been saving for a house, but after paying the scout she discovers she has been conned. Completely devastated she vows never to sing again but is encouraged by her friends to perform at a talent night at Chas and Betty's cafe, the Java Lava.

Meanwhile, Chuckie decides that he is tired of playing it safe and decides to reinvent himself as a risk-taker. With Tommy's help he pulls off a series of pranks which land him in trouble with Vice Principal Pangborn, who the boys discover is a closet poet and inadvertently encourage him to read some of his works at the Java Lava.

While the gang are under stress about the upcoming Standardized Test, Betty and Chas set up a neighbourhood watch to catch the thief who has been stealing from gardens. Dil is suspected when stolen stuff keeps turning up in the Pickles' house but when he tries to take the heat off by returning what was stolen he is caught by Betty and everyone believes him to be the culprit. The real thief turns out to be Tommy, who has been sleepwalking under stress preparing for the test.

Meanwhile, Angelica becomes a mentor to a toddler with a similar personality to herself at that age. All this stresses Angelica, who upon Susie's advice, falsely threatens to spill out a supposedly bad secret the girl has kept unless she writes a good review.

Betty and Chas take Tommy, Chuckie, and Phil white-water rafting. It is discovered that Tommy is not the big brave hero that everyone thinks he is as he has aquaphobia, a fear of water. But he confronts his fear when he saves Phil from drowning.

Chuckie has a crush on Nicole Boscerelli, but she does not notice him. He goes to Kimi for help on changing his image to get Nicole to notice him and they create an alter ego for him as foreign exchange student, Chongo. Despite Tommy telling him that doing so will only lead Nicole to like the fictional Chongo, Chuckie is convinced that he can keep the charade going until he is resorted to changing between Chongo and himself while Nicole is at the Java Lava.

Meanwhile, Angelica becomes a reporter on the school newspaper and after a report on the weird cafeteria food causes students to avoid it altogether, the school's chef Pepe attempts to make new food that ends up making the whole school sick, with Angelica to blame.

When Tommy wins the National Junior Director's Chair Award, the recognition and attention he receives concerns Dil that he and Tommy are growing apart. Tommy becomes annoyed when Dil keeps trying to spend more time with him and the two end up on the live TV talk show What's Your Tragedy?, where Dil admits to Tommy that he is ashamed of being different and that he fears losing Tommy as he is the only one who understands him. Tommy reassures Dil he will never stop caring about him and he should not be ashamed of who he is.

Meanwhile, everyone else is planning a surprise party for Tommy to celebrate his win. The gang try to coach Chuckie, who has a hard time lying, to keep it a secret and enlist Angelica to help him. Chuckie becomes a decent liar, but he later decides that he prefers telling the truth.

Grandpa Lou chaperons Tommy's class field trip to the Human Body Museum. Tommy becomes embarrassed, because Lou is quite slow as he is a lot older now than he used to be, so they do not get to do everything there is at the museum and he keeps telling old stories, which no one finds interesting. Sean and Tommy sneak off and Sean makes them go to a part of the museum that is out of bounds. They get trapped and Lou saves them in a way that reminds Tommy of some of the war stories that he had told him. Tommy then forgives Lou for embarrassing him.

Meanwhile, Dil has to go to hospital with a burping disorder.

Dil makes friends with the new boy Lil' Q, guest star Lil' Romeo, a hacky sacker whose hacky sack has a similar effect to cupid's arrow. He first hits Nicole, who Chuckie is planning to ask to the upcoming Valentine's Day dance, causing her to fall in love with Tommy, which leads to a fall out between him and Chuckie. Lil' Q tries to undo this mistake but instead hits Sean Butler, a boy Aneglica wants to ask her to the dance, and he falls in love with Susie. Lil' Q then hits Z, who also falls in love with Susie and he and Sean argue over who is taking her to the dance, upsetting Kimi who wanted Z to ask her.

At the dance Lil' Q and Dil fix all of the problems: Nicole asks Chuckie to dance and Z asks Kimi, but when they hit Sean with the hacky sack nothing happens and Angelica orders him to dance anyway. Phil asks Tommy to dance with Lil so he can get a snack, but is himself pulled away by Susie so she can dance with him.

The kids prank Dil into thinking aliens have contacted him and they are speaking to him through Tommy. Meanwhile, Angelica schemes to be paired with Sean at the Spring Fling school dance class.

Camp Everwood seems like the perfect opportunity for Tommy's horror movie to take flight, especially when they learn the curse of Camp Everwood. The camp package contains brain-eating zombies, missing settlers, creepy pioneer Rock, the worst musical in history starring Angelica, and a mystery that is just dying to be solved. But when people start to go missing, can Tommy and the gang figure out just what happened on that same soil, over 100 years ago?

It is Angelica's thirteenth birthday and she plans a big party but Savannah, the most popular girl in school, decides to throw a party on the same day. Tommy and Phil use Savannah's obsession with Senor Jumping Bean to ruin her plan and save Angelica's party.

The gang all take an aptitude test to get a clue as to what career they should take up. Tommy dismisses his results, which tell him to become a businessman, but after his new film is not well received he decides to give up his dream of becoming a director and joins the school's business group, BLEC. The others begin exploring their suggested careers: Chuckie becomes a dare devil, Lil becomes a wedding planner, Phil becomes a male model, Dil becomes a public speaker and Kimi becomes a film critic.

A 13-year-old girl, Francine who seeks revenge on Tommy. At first he does not know why, but then Lil and Kimi convince Tommy that Francine has a crush on him. When he finds out that Francine did not have a crush on him, she humiliates him even more (along with Dil's numerous failed attempts of saving him). In the end it becomes apparent that she was only humiliating him because he had cut her scene in one of his films. Once they discuss the misunderstanding they become friends.

Meanwhile, Angelica tries to increase her website's popularity with embarrassing and humiliating pictures of people.

Chuckie and Kimi initially agree to work together on their family tree project, however Kimi realizes she knows nothing about her Japanese heritage and decides to do a separate project on her biological family's side. The Finster family support Kimi in exploring her ancestry, leading to them embarrassing themselves in front of the school when Kimi has them perform a traditional dance at the school's culture festival. The more time Kimi spends embracing Japanese culture the more Chuckie feels she does not want to be a part of her adoptive family. After realising how important Chas and Chuckie are to her, she includes the Finster line on her family tree.

Meanwhile, Tommy meets a new kid called Trevor who behaves a lot like him in order to emulate his popularity.

Angelica has been invited to one of Savannah's parties, and must find a dress that she has not already worn. While working at the hospital she trips and breaks her nose. Not wanting to be seen by anyone, because she has a cast on her nose she fakes having a crazy illness after seeing it on a drama on the hospital television. She then meets a small boy in the hospital, who has greater problems than herself and sees that she is being selfish by pretending to be ill so that she can stay in the hospital and not be seen by Savannah and her friends.

Meanwhile Tommy, Chuckie, Phil, Lil, and Kimi help Miss O'Keefe to make a tranquility garden.

Susie is forced to choose between singing at the TV Talent Show, and leading her language team to victory in the language bowl, which is held on the same day.

Meanwhile, Lil makes Phil pose as her to tell a nerdy boy, Geoffrey, that she does not like him.

Angelica gets a new design for her room. However, the Cynthia doll is missing as her mother, Charlotte, accidentally misunderstood her when she told her to get rid of "all the toys". Now that Angelica realizes that she misses Cynthia, she goes out to find her.

After getting in trouble, Tommy and Chuckie have to water Pangborn's plant, but end up destroying his PDA.

For the school's upcoming science fair, Tommy has an idea to create a machine that can sort socks by color in order to prevent wearing odd socks. After asking his dad, Stu, for a little advice, Stu becomes a little too helpful and takes over so much that Tommy has to admit that the project is no longer his design at the prize-giving event.

Meanwhile, Lil has a crush on an idiot named Nicholas, who asks to work with her on her science project.

Chuckie runs for School Safety Commissioner. Dil's new alien friend, Izzy, despite being imaginary becomes popular with the kids in school and is nominated for Safety Commissioner too. Behind in popularity to Izzy, Chuckie asks his friends to help him win, but even they are backing Izzy. Chuckie becomes annoyed that everyone, even his friends would rather have an imaginary Safety Commissioner than him, then becomes the target of everyone's ire when he supposedly runs over Izzy while mowing the lawn.

Angelica tries to help Chuckie become more popular for her school project, but it backfires when he takes her advice, and he becomes more popular than her.

Meanwhile, Tommy writes a play for the school's history assembly and casts Phil, Lil, Kimi, and Dil to play people in history.

On a trip to a mountain resort, Tommy develops his first crush on a girl named Olivia, another guest at the lodge. Chuckie becomes a third wheel, and feels alienated when Tommy prefers spending time with Olivia instead of helping him overcome his fear of heights. Tommy has his very first kiss with Olivia. Meanwhile, Angelica tries to impress a guy who works as a hiking leader at the resort.

As the holiday season approaches, Chuckie is dreading another forgettable Christmas. In order to liven things up, he mistakenly steals a great tree to replace the lame one his dad has picked out. When he discovers that the whole community is after the thief, he hatches a plan to rectify the situation.

Meanwhile, Tommy and Dil write a Hanukkah song.

When Susie gets a gig singing at Slosh Mountain, "the world's coolest water park", she gives free tickets to Tommy and his friends. The kids are thrilled, not so much about the show, but about getting the chance to go on the mother of all rides, Whiplash Gorge. Unfortunately, Tommy and Dil soon learn they have to look after Grandpa Boris after cataract surgery on exactly the same day. Dil convinces Tommy to take Boris with them to Slosh Mountain, but they lose him.

The whole school is taken over by a role-playing card game, Yu-Gotta-Go (A parody of Yu-Gi-Oh!), except Chuckie. When he finally starts playing it becomes an obsession and, unable to afford new cards, he agrees to do chores for Angelica, who has been grounded by her mother for running up the phone bill. Determined to own a rare and expensive card called "The Red Mirror Dragon", Chuckie turns to more desperate and distressing measures in order to pay for it.

After Stu sells an invention, he tells the kids that he is planning to buy them a swimming pool in the backyard. While digging up the yard, the construction crew unearths the Rugrats' old mechanical Reptar toy from the 1990s. The kids fondly remember it (all of them except for Dil), but decide to throw it away, until, during an electrical storm, they become convinced that they have angered Reptar. They ultimately decide to rescue the toy, and realize that, although they are growing up, they cannot forget their past.

When Angelica signs up for a talent show, Tommy tells her to let Susie know, but only leaves a message on the Carmichaels' malfunctioning answering machine and Susie misses her chance to sign up. Angelica's face breaks out in zits, the others tell her it might be some form of karmic retribution for not letting Susie sign up. Guilt-ridden and experiencing worse and worse luck Angelica seeks help, Dil for tells her to do good deeds, but when the zits get bigger she finally rectifies the situation by letting Susie take her place in the talent show instead.

Meanwhile, when nobody signs up for Miss O'Keats' part of the show, Chuckie, Phil and Lil's attempts to console her backfire when she ropes them all into participating.

It is soccer season, and as per usual, Phil has soccer on the brain. But when Lil casually joins the team, she surprises everyone, including herself, by instantly becoming a super star, much to Phil's dismay. Meanwhile, Dil becomes the new mascot.

Tommy, Chuckie, Phil, and Dil decide to put together a boxcar to compete in the upcoming derby against Angelica.

Susie thinks that Angelica does not think much about the future. While Angelica worries about getting a navel piercing, Susie tries to get a scholarship to a good college. The girls get lost during a school trip and Susie loses her laptop with all of her work on that she needs to show to a college.

Meanwhile, Tommy, Phil, Lil, and Dil skip school so that Lil can get an autograph from her favorite soccer player.

When the gang are invited to spend a week at a dude ranch, will Tommy and his city slicker pals adapt to the ways of the old west?

When Susie gets chosen to sing at a big parade in New York City, the gang hit the road with their moms on a cross country trip! Will Betty's clunky old motor home be able to make it to NYC and see all the stops along the way? Will Tommy and his pals go crazy from lack of video games and TV? Will Chuckie finally get kissed?

Tommy attends a Hebrew school to prepare for his bar mitzvah. While there, he meets Rachel, and falls deeply in love with her. After a while he lies and says that his father, Stu is a rabbi but at the Hebrew School Picnic Rachel finds out and they find out they are both working on the same house.

Note: This is the only All Grown Up! episode that premiered in 2006.

As Phil and Lil's birthday nears, the twins realize that they are more different from each other than they think. Phil is getting to like girls, and Lil is wearing a pink training bra. After a shocking incident, they decide to have separate parties for the boys and the girls as they try to out-prank each other.

Meanwhile, Dil is worried that he might turn into a vampire after getting bitten what he thinks is a vampire bat.

Susie trains Harold to help him get a date with Angelica. He soon becomes the most wanted boy in school.

Meanwhile, Dil tries to play Cupid himself as he helps Vice Principal Pangborn woo Miss O'Keats.

Angelica falls for Darryl, but she gets too nervous to talk to him whenever he is around. Her mom loses her CEO job and decides to become a full-time mom. Then, they get stranded together on a sail boat on the same day as Darryl's rock concert.

Meanwhile, Tommy decides to invite Rachel for dinner with his family, but is worried it will go wrong and she will dislike his family.

Tommy is getting annoyed by Dil's eccentric behavior, and he wants more space. When the gang visits Cirque Extravaganza Day Camp, Dil meets a family who are just as eccentric as he is who invite him to join their troupe permanently.

When the gang sneaks into a PG-13 movie at the mall, Angelica catches them, and she has excellent blackmail fodder. The mall then closes with them locked inside with two robbers. Chuckie imitates the main character of the movie they just saw and saves the day.

When Angelica is outraged when Charlotte and Drew have to cancel their vacation to Hawaii, they decide that Angelica could use more discipline and have her stay with Susie's family for a week. The rest of the gang all bet on how long she can handle the Carmichael family rules. Angelica has trouble adjusting early on but is spurred on by the bet and starts doing all the family chores. Not wanting to lose the bet, Kimi and Lil encourage Susie and her brothers to give Angelica more, harder chores to do, which leads to Angelica falling off the roof of the house.

Meanwhile, Charlotte and Drew initially enjoy having "silence" in the house, but Dil shows up to "fill the void" left by Angelica. Throughout his stay, he gets them to play his original game "Impatience", which causes them to get very frustrated with the game's rules and realise they miss Angelica. Angelica comes home and surprises her parents with what she learned from the Carmichaels, cooking them a family dinner.

Phil has a crush on Lil's best friend and soccer teammate Wally they start hanging out more often, making Lil feel out of the loop. So Lil develops a plan to pull them apart. Phil and Wally's relationship falls apart when Lil tells Wally that he does not like her. When Phil finds out that Lil lied to Wally, he becomes upset at his sister.

Meanwhile, Dil brought him his new friend to Tommy and Chuckie who happens to be Principal Pangborn's nephew.

Tired of being considered a "goody goody" by the popular kids, Susie tries desperately to prove that she can be a bad girl.

Meanwhile, Phil discovers that he has a talent for cooking.

When Kimi starts acting out, Chuckie believes it's because she hates how her room looks. The gang decides to redesign it for her while Angelica keeps Kimi busy with Dil giving feng shui advice, which goes ignored. Chuckie later provides Kimi reassurance when she explains what was making her so emotional: that her father did not send her anything for Children's Day and fears he no longer cares about her. Chas and Kira, who have been telling the children they have been taking dance lessons, were in fact arranging a big surprise for Kimi.

The gang are preparing for what may be their last Halloween trick-or-treating. While trying on their costumes in the Finster's garage they find TP+KF carved on the wall, leading Chuckie to believe that Tommy has a crush on Kimi. The argument between Tommy and Chuckie escalates to where their friendship falls apart. After the rest of the gang's attempts to bring them back together fail, including the reveal that it was Kimi who carved the initials, they eventually make up when Chuckie saves Tommy from middle school goons.

Meanwhile, Chas has a new security system to scare away anyone who might want to T.P. ("toilet paper") his house and Dil goes trick-or-treating the day before in order to beat the rush, but only gets money and becomes annoyed.

When a comic book starring Chuckie's favorite superhero Armadillo Dave gets cancelled, he becomes too depressed to help Tommy with his science fair project. Tommy has to buy a rat for his project, but the last rat available is a mean one that scares everybody. Kimi makes Tommy a simple one lane track for his rat, much to his disappointment as he feels he would get a failing grade for it, but needs Chuckie so he can get a good grade on it since Chuckie has done it before. The gang tries to find Chuckie a new hero to worship.

Angelica's teacher is having a baby so she brings in a hot handsome substitute teacher that Angelica falls for and tries to date by failing her assignments. Meanwhile, Tommy, Phil, and Chuckie are part of the tennis club run by Pangborn. Chuckie is trying to avoid showering at the boys' locker room, but when he takes the chance, he realizes he has nothing to worry about.

Tommy's girlfriend, Rachel is moving away, and he is cool with it, but is not sure why. However, his friends think otherwise, believing him to be in denial. Tommy tries going about his life as normal, but everyone keeps trying to show him compassion, annoying him greatly. Tommy is advised by Dil to go along with the plan so his friends will leave him alone. However, when Tommy hooks up with another girl, the gang unexpectedly have Rachel show up to surprise Tommy. Seeing him with another girl so soon is too much for her to bear, so she walks away again, leaving Tommy to cry for real this time. Chuckie then shows up at Tommy's house to comfort him.

While preparing for her parents' tenth wedding anniversary with Chuckie, Kimi leads a petition drive to ban cell phones in school. To prevent having phones banned, Angelica hoodwinks Chuckie into helping her keep them with a rival petition, while Susie helps Kimi counteract. A debate on the issue between Kimi and Chuckie at a school assembly turns personal - in particular when Chuckie reveals Kimi asked for a cell phone for Christmas - and they stop speaking to each other. Their feud boils over to the anniversary party until Tommy shows a video of their parents' wedding when they were babies, which brings them to tears and they make up.

• This is the last appearance of Angelica and Susie in the series.

With Stu and Didi away at an Invention Convention, Dil wants to host a viewing party for a "real" alien autopsy video with Tommy. But when both Grandpa Lou and Grandpa Boris show up to babysit the kids, they all start to have a feud. This gets even more difficult when Phil, Lil, and Chuckie show up and Dil invites ten other kids to come see it, much to Tommy's frustration.

When Tommy's gang's parents feel that they are spending too much time watching TV, they ban it from the house. So in order to get their televisions back, they do something dare-devilish. They make a tree house with a zip-line in the backyard to scare and anger their parents into giving them their TV back.

• This is the final appearances of Chuckie, Phil, Lil, & Kimi in the series.

When Tommy forgoes going to the traditional opening day ball game outing with his Grandpa in order to patch things up with his former girlfriend Rachel, Lou takes Dil instead. This makes Tommy jealous as he and Dil compete to be Lou's favorite grandson during a fishing trip.

• This is the series finale of All Grown Up and the finale of the original Rugrats continuity.