Susie worries she might have to move, when her father's boss, the creator the "Dummi Bears" animated series comes over to dinner; Angelica makes Phil and Lil think only one of them is their parents' favorite child.
Susie accuses Angelica of stealing her new tricycle.; Angelica is playing Doctor and tells Chickie, he has a disease called "Rhinocertis" and he will turn into a rhinoceros.
After a trip to the circus, Angelica stages her own big top, using the Rugrats as her three-ring acts. Angelica, informed that babies come from stork eggs, passes this on to the Rugrats, who find a crow's egg and try to hatch a baby brother for Tommy.
Angelica puts "vanishing cream" on Tommy and Chuckie and pretends she can't see them in order to get them to sneak desserts for her.After yet another wild adventure, Chuckie decides that Tommy plays too rough.
When Susie's teenage sister Alisa baby-sits Susie and Tommy for the first time, Tommy and Susie suspect there are monsters loose in the house.Grandpa tells Angelica and Tommy about Stu and Drew's babyhood.
When the "Reptar 2010" videotape breaks, the rugrats each supply their own ending to the story, describing a Reptar that resembles their own characters. / Stu, trying to break through his "inventor's block', gets a job at Consolidated Lard.
After Chuckie admires Tommy's punching-bag clown doll, Tommy gives it to Chuckie. / When the Rugrats find a nickel in the park, Angelica's greed takes over and she drives them to look for more.
While Stu shows boring slides of his family's vacation, the rugrats draw their own "slides" which come alive as they narrate their own "day in the life" stories.
Angelica sneaks a set of toy handcuffs and then gets stuck cuffed to Chuckie. / The Rugrats go off on a backyard fantasy adventure to find the North Pole and get Santa to fix Chuckie's fire truck.
The babies think Grandpa's trailer is a rocket ship and go to the moon. On her birthday, Angelica decides to become a baby, again after she worries about growing up.
Angelica misinterprets her parents' remarks and believes she's an actual princess. When Tommy stays with Chuckie for a few days, their individual quirks start to annoy each other.
Tired of Angelica's bullying, the rugrats go play with another kid in the park, Josh. / Angelica decides to sue her parents for divorce after they insist that she eat some broccoli.
After Stu get angry and breaks the television set, the kids make their own TV out of a cardboard box. Angelica tells the babies that the world is going to end.