Didi watches a Dr. Lipschitz video, which basically includes a few pointers on childcare, plus an obligatory plug for more videos. Afterward, she looks at her trusty Lipschitz book, but, when she notices the book's title, ""Dr. Lipschitz A to Z, Birth to 5"", she worries about what will happen when Tommy turns 6, as, of course, that book only covers children up to 5 years of age. Thinking that using Lipschitz as a crutch would turn dangerous in the years ahead, Didi decides to enroll at a community college for classes in childhood development, with plans on eventually getting a masters degree in that field. However, when the Rugrats hears that Didi is going ""back to school"", they think that everything is going backwards, and they become more fearful of that fact when they observe Spike walking with a baby bottle in his mouth, and Stu taking Dil back to the hospital (in reality, for a checkup).

At a sleep-over at Tommy's house, the Rugrats have vivid dreams, except for Chuckie.

A new ""Follow Me Reptar"" toy, one of Active Child Magazine's 10 best toys, inspires the Rugrats to get Dil to walk. As they try to do so, Stu thinks he sees Dil walking on his own. Because of that, Stu rigs up extensive video equipment to capture Dil's every move, so he wouldn't miss it again. Also, The Rugrats and their parents remember when the kids first started walking.

With Charlotte busy taking care of business with Jonathan, she puts Angelica in charge of the Rugrats, with one catch -- if she is caught being mean to the Rugrats, then her new Cynthia Dream Yacht sets sail back to the store. But that's not all -- Harold from pre-school is coming over, too. With that in mind, Angelica hires him as her assistant. But while Angelica ordered Harold to boss around the Rugrats, he ended up being a hit with them, to the ire of Angelica.

Special:In this episode, Angelica and Susie go to their first day at preschool at the local community center. However, their first day ended up being a competition on who can be the best preschooler, as Angelica always tries to outshine Susie. But the big challenge comes when Angelica and Susie accidentally breaks Miss Weemer's favorite coffee cup; it's not just any coffee cup -- it reminded her of her old boyfriend, who has broken up with her awhile ago. Joining them on the mission to fix her broken cup is Harold, who becomes a pain in Angelica's side.

As Stu & Didi are trying to find a new babysitter for the Rugrats, Grandpa & Lulu recommends Lulu's grand-niece, Taffy (Amanda Bynes). After they see Taffy perform with her band, ""The Saltwaters"", at a bowling alley, they hire her on a trial basis. As she babysits, Taffy teaches the Rugrats a thing or two about music, while trying to come up with a song for her band to play at their next gig -- a grand opening of a gas station. The trouble is, Taffy isn't that great of a songwriter, while Angelica, as always, is tone deaf. As Taffy does her thing with the ""minis"", the Rugrats' parents, at Betty's insistance, spy to make sure Taffy does a good job. They later find out that Taffy was a good choice as babysitter.

After watching ""The Cynthia Team"", an action series where Cynthia and her friends are secret agents, Angelica gets the Rugrats to play-act the show with her. In the Rugrats version, Angelica is secret agent Cynthia, whose mission is to stop Dr. Doomsbake (played by Tommy) fro

Taffy takes the Rugrats to a high school basketball game, where the Hornets are playing the visiting Poodles. However, Taffy ""volunteers"" herself to replace one of the cheerleaders, after one of them, her best friend Britannica, sprained their ankle, after Taffy caused their pyramid to collapse. As she does so, she leaves the Rugrats alone in the bleachers while she fills in for Britannica, and eventually,

Didi wanted Stu to clean up the living room for Boris & Minka's visit, which includes putting the toys away. Sarcastically, Stu says that he would put the toys, and the babies, into the crawlspace. Angelica interprets this by banishing the Rugrats to the crawl space, where they could play there, while Angelica has the living room all to herself, to the displeasure of Susie. Meanwhile, Stu invents an automatic plan

Special:60 minutes long (or 2 30-minute parts, depending on where you watch it), this will be the Rugrats' second Christmas special, and the fourth special for the holiday season. In this special, the Rugrats visit MergeCorp headquarters (where Charlotte is CEO) to see ""Christmasland"", Santa's winter wonderland, designed by, of course, Stu. The visit is extra special, as it is Dil's first Christmas. However, when Angelica behaved like such a brat she is (definitely not a good thing during the Holidays), ""Santa"" (Jim Belushi) got fed up with the whole business, and decides to quit. Because of this, Tommy finds a way to bring ""Santa"" back, and to make this Christmas a joyous one for Dil. It is especially important to Dil, as Angelica tells the Rugrats that if they don't get a present, they don't get to celebrate Christmas ever again. Meanwhile, the grown-ups have a simulated Christmas in the prairies, complete with the experience of being snowbound, thanks to a malfunction in Stu's other

When Hollywood celebrity Mack Granite visits Java Lava, he got more than a decent cup of coffee -- he also finds the perfect person to play the role of a little girl in his next film. And Kimi is -- that girl. But, when Mack says that Kimi is going to be a star, the Rugrats though that she'll be up in the sky, twinkling.

When Taffy comes over to babysit the Rugrats, she is upset that the band will break up, all because they feel that she is affecting her performance in the band. When Taffy says, ""I'm not myself"", Angelica tries to cheer her up by dressing like Taffy. However, this created a new problem -- the Rugrats think that Angelica, wearing one of taffy's hair clips, has become Taffy; while Taffy, calling the bandmembers ""dumb babies"" over the phone, has become Angelica.

The local park is having a special ""Pet Day"", where the people vie for the ""Best Pet"" award by showing off their pets, and their abilities. Participating in the contest are Spike & Fifi's puppies, Spiffy and Sparky / Pepper; plus Angelica's cat, Susie; and Susie's new pet gerbil, Herbie. However, tensions are mounted when the participants' owners feud over how their pet

At a fast food joint called ""Boingo Burger"", Taffy tells her friend Britannica (working the cash register as an employee) to hold the pickles on her burger, as, as she told Britannica, ""I don't like dill pickles"". The Rugrats, however, has taken this to mean ""I don't like Dil Pickles"", because he was the youngest of the Rugrats. As a result, they try to make Dil bigger by putting him in a booster seat and stuffing his pyjamas with napkins. Then, after Taffy calls the Rugrats ""sweet"" for their effort to make Dil cute, they raid the sundae bar and turn Dil into a sundae

Taffy takes the Rugrats to a video arcade; the Rugrats imagine themselves trying to save ""Princess"" Taffy from the dragons in a video game.

The Rugrats coat Dil with ""Baby Power"" (baby powder), so he could be strong enough to beat Spiffy in a game of Tug-Of-War. Shortly afterward, though, an earthquake strikes the city, leading the Rugrats to believe that Dil has too much ""Baby Power"", so they try to find a way to make him normal again. The earthquake has given Stu an opportunity to try special earthquake safety helmets on the Rugrats, the newest product from Pickles Industries, ""the first name in disaster"".

So that he can watch his sci-fi movie marathon in peace, and keep an eye on the Rugrats at the same time, Stu installs surveillance cameras all through the house. Then, Stu falls asleep. As he sleeps, Dil plays with the remote, changing the channels back and forth between the home's surveillance system and a movie about an alien invasion. This, of course, leads the Rugrats to believe that they are targeted for an ""alien inflation"". Meanwhile, Didi studies for an important exam for her college course.

Taffy takes the Rugrats to the local park. While there, Dusty, a boy that Taffy meets at a park, shows Phil how to pick up trash. Afterwards, it becomes so serious to Phil, that practically anything can be trash, much to the ire of Lil. Meanwhile, Taffy starts to fall in love with Dusty, due to his environmential consciousness -- that is, until she learns the real reason why Dusty is picking up the litter.

The Rugrats and their families go to Stu & Drew's old cabin on Lake Crackanee, where, as kids, Stu & Drew first met Chazz. After seeing some old movies of themselves as kids, Stu wishes that they were young again. The wish, of course, became a mission for the Rugrats, who started searching for ""The Fountain Of Youth"", which, they claim, can turn their parents into little kids. It's all fun, until Angelica told the Rugrats that, once their parents become babies, she'll be the one in charge.

On Kimi's birthday (she's 2 now, isn't she?), Stu plans to take the kids to a family-friendly place called ""The Happy Castle"", where Kimi will have her party. But, for some reason, they arrived instead at a gothic / punk nightclub, where Taffy is playing with her band. Thinking that the party is here, they try to find the birthday cake, which, by the time everyone gotten to it, was already melted.

Special:A popular Agatha Christie mystery, ""Murder On The Orient Express"", gets the Rugrats treatment. For their second honeymoon, Boris & Minka are going on an 18-hour scenic train ride to the small town of Little Biendeltown -- a town that replicates the charm of the Old Country. But, of course, they invite the entire gang along for the ride. However, along the way, Minka's necklace, Chuckie's teddy bear, Wawa, and of course, Angelica's Cynthia, had disappeared -- they may have been stolen by a train robber, which Chazz informs the other adults about after reading it in the paper. As a result, the Rugrats try to find who has stolen these items. Meanwhile, Drew forces Charlotte to leave her work at home while they go on their trip, but Charlotte, of course, remains defiant. Also, Didi tries to find various landmarks that the train passes by, but it became more of a challenge. Plus, on the train, Lulu meets her old flame, Dwayne Tickerbacker (Tom Bosley of Happy Days fame), but Grandpa

Special: The Weekend , Stu decided to have a family barbecue. However, it was actually on a windy day in the fall. At the suggestion of Aunt Miriam, everyone decided to spend some time at Club Fred, a pirate-themed family resort in the Caribbean. And with a two-for-one coupon, they save some money. But, when Grandpa realised that he made an error with the reservations (which he accidentally made only for the elders and the Rugrats; the form for the other grownups was used as a wrapper for his sandwich), everybody ended up staying in a single small hut -- with the entire extended family on the trip, it ended up being very cramped. Their only hope was to win Pirate Fred's treasure hunt, where the person that finds the treasure wins an upgrade to a ""5 Room Deluxe Vacation Package"". Of course, this leads to another pirate adventure with the Rugrats, where they look everywhere, including a place where no Rugrat should ever go -- a nude beach. Finding the treasure was sure to be an impossibl

Special:Betty's relatives from England come to America to pay a visit. Coming along are their kids -- Smedley & Hedley -- who are also fraternal twins like Phil & Lil. Unlike Phil & Lil, Smedley & Hedley dress differently, behave properly, keep clean, and finish each other's sentences without delay or incorrectness; therefore, they consider such ""twinny"" behavior a sign that they are ""perfect twins"". This eventually led to Lil wanting to be as prim and proper as Smedley & Hedley, while Phil decides to remain as messy and disorderly as usual. Meanwhile, Winnifred, the British twins' mother, tries to sell Betty on her method of raising twins -- a method that Betty steadfastly refuses to subscribe to. Also, Betty gets the neighbors to pose as her relatives, as her real relatives didn't come, due to Howard's cheap invitation software that he bought at a dollar store. And, Angelica, dressed as a princess for a dance recital, tricks Smedley & Hedley into believing that she's queen of America

When Chazz finds out that Puppy is sad all the time, he decides to give her a name. But later, Puppy ended up getting sick, which Chazz though was due to an identity crisis (she actually ate part of Kira's jigsaw puzzle). Noting that, the Rugrats started looking (litterly, around the house) for Puppy's new name. When it came to a point when Chazz started banging his head on the wall, he calls veterinarian Dr. Mutterly to see what the problem was. When the vet came over, the Rugrats thought that he would give the puppy a new name. But of course, his unorthodox methods leave something to be desired.

Howard prepares for a storm called Hurricane Alice, who says that it would turn their house ""upside down"". While he does that, Betty's old classmate, Sheila (who's also as brute as Betty) pays a visit, along with her daughter -- named Alice. When Alice makes a mess of things looking for toys (or anything that can be one), the Rugrats thought that she was ""Hurricane Alice"". Meanwhile, Bett

The Rugrats go to a circus when it comes to town, courtesy of their fathers, who have gotten them tickets and backstage passes. But of course, we already know about Chuckie's fear of clowns. Angelica successfully tricks Chuckie into believing that he was a clown, due to his red hair. But, after eating a cherry snow cone, being given clown shoes by his dad, and accidentally bumping into makeup powder, he actually believes that he is a clown. However, his fears ended up becoming much more serious when he finds out that he's on centerstage -- with clowns -- in front of a live audience. Meanwhile, Angelica tries her hand at being an acrobat, a trapeze artist and a ribbon dancer, much to the ire of the real performers.

Inspired by an awards show that they watch on TV, the Rugrats put on an awards show of their own, just so they can feel ""specially special"" with their own awards -- ""toys on a plate"". But there's one problem -- which Rugrat will get which ""reward""? Meanwhile, Stu, despite

Didi, Betty, and Kira go to this store where you can buy bab clothes. ( Which Were Half Off ). While Kira fights over a dress, the babies make a mess of things in the playroom.

The Rugrats make a snowman, and call it Steve. They were playing with him, and when the snow was melting, So was Steve. The Rugrats try to fix him. Will He Be Fixed?

At the local playground, monkey bars and a slide doubled as ""Mount Neverrest"", on the Rugrats' latest adventure. However, Tommy lost his grip and fell. While Angelica's Cynthiamobile broke his fall, he escaped uninjured, but there's one problem -- he became a fraidy cat. This led to Angelica's own test of bravery, which will determine who's the new bravest Rugrat -- or at least, see if Tommy can get his bravery back.

As part of her science experiment for her Child Psychology degree, Didt takes Tommy and the Rugrats to Kinyuka College, where she tries to find a way to make the Rugrats go to sleep faster, using a wind-up toy that plays lullabies. But when tests didn't work as expected, Didi tells Betty that she'll cry if she doesn't get an ""A"". This promoted the Rugrats to search the college campus for that elusive ""A"".