List of All Grown Up! episodes

Lil is invited to a party with all of the popular kids from school, provided her brother does not come with her, as the kids believe he is “socially inept” and “hygienically challenged”. Lil begins to pull away from Phil, even though he tries to remain close to her. When Phil and Lil are partnered together for a science project, Lil freaks out and angrily reminds everyone that she and Phil are separate individuals and not a single person, and embarrasses Phil. When their parents, Betty and Howard, arrive home excited for their family vacation trip to 'Nick and Dick’s Twin Canyon Resort' Lil refuses to go. Knowing how unhappy Lil became, Betty allows Lil to move into their family’s office/workout room to give her a space of her own. However, Phil struggles to deal with the changes and misses having Lil in his life, despite Dil’s attempts to become Phil’s new twin. When Lil goes to her party, her new friends begin to make fun of Phil, which makes Lil upset and then realise how close to her brother she really is and she leaves the party after telling off the popular kids. In the end, Lil made up with Phil and agree to go to ‘Twin’s Canyon’ together.

After meeting a woman from a talent agency, Susie begins to believe that she has the talent needed to become an international pop star. The woman tells Susie that she has many prospective clients ready to meet her, provided she pays $1,000. Unable to come up with the money on her own or ask her parents for it, she turns to her older sister, Alisa, who has been saving up for a house. Alisa agrees to give her the money, however, when Susie arrives at the building she was told to meet at, she discovers it is deserted. Completely devastated, Susie goes home and tells her sister about the lost money. Alisa is understanding, but angry that Susie put her life at risk. Despite her setback, Susie goes onstage at Chas and Betty’s cafe, the Java Lava, for a talent night and is a huge success.

In Science class, while building grapefruit batteries, the school bad-boy, Z, explodes his grapefruit causing bits to become lodged in Chuckie’s nose. When Chuckie has to go to the nurse, the teacher, Mr. Beaker, partners Kimi with Z for the experiment. Kimi hits it off with Z, whom she admires for being an individual. Chuckie, however, is horrified at the thought of Kimi hanging around with a “bad-boy”, however the rest of the gang encourage him not to judge a book by its cover. Chuckie is not convinced and encourages them to help him spy on Z. When they look in his locker, they find it full of electronics, which Chuckie believes to be stolen. Chuckie later skips class and follows Z to the arcade and records him telling a sketchy guy to meet him at the alley behind the warehouse on 10th. When Chuckie learns that Kimi plans on meeting Z that night, he lets her listen to the tape of Z’s mysterious plans. Kimi pretends to be heartbroken and goes into the bathroom, but sneaks out the window to meet him. When Chuckie and the boys arrive in the alley, Chuckie catches Z and Kimi entering a truck with a lot of merchandise. Scared for his sister, Chuckie swerves his bike in front of the truck causing it to stop. When he confronts Z he finds out that the merchandise is for charity to help raise money for inner-city schools and that the sketchy man is Z’s dad. Kimi is angry and says she will never forgive Chuckie, but Z encourages her to cut her friends and brother some slack since they only did what they did because they cared about her.

Tommy becomes excited when he learns about an upcoming film contest that is going to be judged by his favorite director, Martin Costomiris. His parents, Didi and Stu, encourage him to enter, but Tommy is unsure of what kind of movie he wants to make. Eventually he decides on a sci-fi thriller about aliens, starring his friends. However, he quickly becomes frustrated by his friends constant bickering and unprofessionalism. He realizes that filming his friends’ secret conversations is more film worthy than his sci-fi thriller. When reviewing the footage, Dil tells Tommy he does not think that entering the footage about their friends’ secrets would be a very good idea. Angelica comes over one day demanding to see the tape when Tommy is not home. When Angelica sees the tape and the humiliating footage Tommy shot, she calls over the whole gang to watch it, who except for Chuckie (who isn't that embarrassed) and Dil (who had tried to warn Tommy), are all outraged that Tommy would consider entering their private moments into the competition and demanded him to destroy the tape. When Tommy refuses, his friends stormed out and give Tommy the cold shoulder for the next couple of days. After an epiphany involving a poster of his favorite director, Tommy is inspired to cut a new version of the film. The film he enters for the competition, A Day before the Day of the Life of My Friends, features bloopers from his earlier attempt at making a movie and clips of the gang as babies, this time showing them in a more positive and proud light. Tommy did not win the competition but he got a picture of him with his favorite director and he got his friends back. Meanwhile, Vice Principal Pangborn wants to spend more time observing Dil’s behaviour as he finds it either interesting or disturbing. However, his attempts to delve into Dil’s mind using traditional methods are frustrating. Pangborn calls Stu and Didi into his office and tells them that he recommends Dil have some counselling. Didi is outraged that Pangborn would consider changing her son into a generic boy without any originality. She praises Dil for seeing the world differently and storms out, leaving Pangborn cowering behind a file shelf.

Chuckie has a crush on Nicole Boscerelli, but he is afraid to talk to her because she does not notice his existence. Desperate, he goes to Kimi for help on changing his image to get Nicole to notice him. She agrees with the condition that Chuckie takes her shift at the Java Lava so she can go to a concert with Lil. With the confidence he receives from his new disguise he develops an alter ego as foreign exchange student, Chongo, when he introduces himself to her. Tommy tells Chuckie he does not need to become a different person to impress Nicole and that Nicole does not really like Chuckie but the fictional Chongo. Chuckie is convinced that he can keep the charade going. One afternoon when working at the Java Lava Nicole comes in for a smoothie and spends time talking about Chongo to Chuckie and tells him that she appreciates his great listening skills. With his success in talking to her Chuckie decides to tell Nicole that he is really Chongo, but when he arrives, Nicole insists that Chongo meets her new friend Chuck… from the Java Lava. Chuckie tries to keep switching between Chongo and himself but is caught by Nicole who is angry at him for lying to her but still wants to be friends with him regardless.

There is a thief who has been stealing things from gardens, so Betty and Chas set up a neighbourhood watch to catch the thief. Tommy and the gang think that the thief is Dil after Tommy spots one of the Deville's two stolen gnomes in his bed, and finds Susie’s bike in their garage the next day. Dil keeps denying that he is the thief, and then later finds the other gnome in Tommy's room. With the constant tossing of blame, Tommy holds a sleepover inviting Chuckie, Phil and Lil to stay over and help him catch Dil. As well as trying to catch Dil in the act Tommy, Phil and Lil are studying for the Standardised Test and are freaking out. Dil then finds out that the thief was Tommy, although Tommy appears oblivious to this fact. Dil then decides to return the stolen items, but is caught by Betty and Chas, who thinks that Dil is the thief, while he simultaneously denies it and defends an oblivious Tommy. At home, Didi and Stu threaten to forbid Dil from going on his field trip, but upon Tommy's intervention, reluctantly agree to cut him some slack for giving back the stolen items and ground him for a few days. Tommy soon wakes up in the middle of the night on top of a statue holding a garden flamingo and realises that he is in fact the real thief. He is arrested by the police, and he tells them that it was only because he was sleepwalking due to the amount of stress that he was under from studying for the Standardised Test. The two officers are sympathetic because the test has caused a lot of kids to go crazy, including them, and let him off the hook and explain to his parents what happened. Tommy then somehow manages to pass the test while asleep, and then surprises Dil by both having their parents unground him and let him go on the field trip and thanking him for defending him.

Tommy wins the National Junior Director’s Chair Award for his short film, Kaleidoscope Lunch. However, Dil is saddened by Tommy’s success because he feels that he and Tommy are growing apart and that he will be forgotten when Tommy becomes famous. So he decides to spend as much time with Tommy as he possibly can, much to Tommy annoyance. Finally Tommy cracks and tells Dil that he is acting ridiculous and that nothing between them as brothers was going to change. Despite this, Dil cannot help but feel that he will eventually be forgotten, so he decides to begin preparing for a life without Tommy. He attempts to hang out with the other 4th grade kids, since he usually hangs out with Tommy and his friends, but they think that he’s too strange. Tommy begins to get groupies, who obsessively follow him around. When he is in the back room of the Java Lava with Chuckie they see that Dil is a guest on the new hit show, ‘What’s Your Tragedy?’ Tommy and Chuckie go to the studio and Tommy publicly apologizes for his behaviour. The conniving talk show host tries to convince Dil to dump Tommy and he almost does until Tommy drags him backstage to talk. Dil admits that he is ashamed of being different and that he fears losing Tommy being as Tommy is the only one who understands him. Tommy reminds Dil that it is the different people in the world that make the biggest difference in life. They leave the talk show and go to Tommy’s surprise party at the Java Lava.

Grandpa Lou chaperons Tommy's class field trip to the Human Body Museum. Tommy becomes embarrassed, because Grandpa 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 ones 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 Grandpa Lou saves them in a way that reminds Tommy of some of the war stories that Grandpa Lou had told him. Tommy then forgives Grandpa Lou for embarrassing him.

There is a Valentine's Day dance. Dil makes friends with the new boy Lil’ Q, guest star Lil' Romeo, who is a hacky sacker, but his hacky sacky turns out to be cupid’s arrow. Chuckie is planning to ask Nicole to the dance, but while Dil is helping Lil Q with his hacky sacky aiming Lil’ Q goes to hit Nicole’s book, but he accidentally hits Nicole, making her fall in love with Tommy. Chuckie gets angry at Tommy and they fall out. Angelica is scheming to get the boy of her dreams, Sean Butler, into asking her to the dance, but while she’s talking to him Nicole, Tommy and Chuckie are walking passed, so Lil’ Q tries to undo his mistake earlier, but this time instead of hitting Nicole with his hacky sacky he hits Sean on the head and he falls in love with Susie (who is sitting on a bench). Later at the Java Lava Angelica warns Kimi to keep Susie away from Z, because Susie is a boy stealer. Kimi tells Angelica that there is not anything to worry about because she, Susie and Z are just friends. Lil’ Q and Dil are practising throwing the hacky sacky around the Java Lava and when Lil’ Q throws it he hits Z who is carrying smoothies back to their table. He immediately falls in love with Susie and he and Sean argue over who is taking Susie to the dance and Kimi gets upset because she likes Z.

The kids prank Dil into thinking aliens have contacted him and they are speaking to him through Tommy.

A 14-year-old girl, Francine, publicly humiliates 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.

On being given a family tree project Chuckie and Kimi are excited that they only have one piece of homework between them as they are brother and sister. However Kimi discovers her Japanese heritage and decides that she and Chuckie should work on separate projects, because she is studying all of her biological family’s side, not her adoptive father’s side (Chuckie’s dad). At first Chuckie is supportive of his sister, but after she drags the Finster family into a charade for the schools culture festival, which humiliates them, Chuckie becomes annoyed and wants his old sister back.

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.

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.

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

Tommy’s school have a Science fair and Tommy has an idea to create a machine that can sort socks by colour so that you never end out wearing odd socks. After asking his dad, Stu, for a little advice Stu becomes a little too helpful and takes over. Stu takes over so much that Tommy has to admit that the project is no longer his design at the prize giving event.

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.

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.

When there is a talent show coming, Angelica signs up. Tommy tells her to let Susie know, and she does. However, when she calls Susie on the phone to leave a message while Susie's away, the Carmichaels' answering machine malfunctions, preventing Susie from getting the message. Later, Angelica's face breaks out in zits and the others tell her it might be some form of karmic retribution for not letting Susie sign up. Guilt-ridden and experiencing worse luck than before, she comes to Dil's advice. Dil tells her to do good deeds, but the zits get bigger and she ends up letting Susie sing in the talent show instead.

It's 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.

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 then went on a school trip and get lost and Susie loses her laptop with all of her work on that she needs to show to a college.

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.

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

Angelica falls for Darryl, but she gets too nervous to talk to him whenever he's 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.

After Charlotte and Drew have to cancel their annual vacation with Angelica to Hawaii, much to Angelica's fury, Charlotte has dinner with the Carmichaels, she decides that Angelica could use a bit more discipline, so she has her staying with Susie's family for a week.

Tommy and Chuckie then bet Phil, Kimi, Lil and Susie that the spoiled princess can handle all the Carmichael family rules for seven days or a week. After the first two days, Angelica is close to cracking, but after someone points out what she would be doing if she quit too soon, she starts to drastically improve her skill and efficiency on the chores, while adding her own style to them, much to Susie's displeasure, but she also starts playing dirty and tricking them so she takes full advantage of the rules. However, after Kimi and Lil egg Susie on how worse the bet is getting she rallies her brothers Buster and Edwin, who are also eager to get back at her, to give Angelica a whole list of assignments to do, involving some heavy remodeling of everything in the entire house. This backfires when their parents catch Angelica falling down while cleaning the rain gutters on the roof with a toothbrush as her "last chore", and they ground Susie, Buster and Edwin for a month changing the entire chore table. Since it is the last day of the week, the Carmichaels allow Angelica to leave their home, noting that after all that pressure Susie, Buster and Edwin gave her, she made a breakthrough with the rules.

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 fell apart when Lil told Wally that he didn't like her. When he found out that Lil lied to Wally, Phil became upset.

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

While the gang try on their Halloween costumes in the Finster's garage, they find TP+KF carved on the wall. Chuckie believes that Tommy has a crush on Kimi. The argument between Tommy and Chuckie escalates to where their friendship falls apart. So the rest of the gang tried to bring the two back together, but backfired. The two would eventually make up when Chuckie saved Tommy from the middle school goons who were chasing him.