Miss Lilly is coming to dinner at Angelina's cottage and Angelina wants everything to be perfect to impress her after a talk with the twins. Angelina makes Cucumber Soup for Miss Lilly. The dinner seems to end in a disaster, but Miss Lilly comforts Angelina and lets her know that cucumbers give her the hiccups.

Angelina is looking forward to the dress rehearsal but her tutu rips!

Angelina is disappointed that she cannot join the adults at The Costume Ball. Mrs. Hodgepodge is babysitting her and Alice, as she is the only adult in Mouseland who is not going to The Costume Ball. Alice and Angelina decide to disguise themselves as an adult to attend the costume ball but while Angelina wants to dance, Alice just wants some food. Sadly they both get caught and are made to clean up the Halle and eat cabbage jelly sandwiches.

Angelina and Henry are camping. Is a fearsome black cat stalking the hills?

Angelina gives away her old rag doll Polka, but later she really wants her toy of memories back. While teaching a preschool class how to dance, she realises that the new owner Mary needs it more.

A new Chipping Cheddar resident called Anya is introduced and quickly befriends Angelina. However, Anya is ostracised by Sammy Watts and the Pinkpaw twins for prejudicial reasons. Angelina clears Anya's name and helps her to fit in with the other mouselings.

Prickled by the attention the Pinkpaws are getting for their newborn brother, Angelina fibs she's going to have one too. She has great difficulty confessing but finally does when she thinks the Pinkpaws' party is all about her new baby sister.

Miss Lilly chooses Angelina to be The Rose Fairy Princess, but Angelina is nervous about the flying stunt. Determined not to let Miss Lilly down, Angelina goes along with the stunt and overcomes her fear.

Alice gives Angelina a new gym bag, but when she mislays it, Alice thinks Angelina gave it away and doesn't appreciate her and the two friends fall out, until Henry finds the bag and Angelina and Alice make up.

Chipping Cheddar have been asked to enter a team in the Icepuck League, but girls can't play.

It's Valentine's Day, and Angelina has made cards for all her favourite people.

Alice is selected for the All Mouse Gymnastics Championships.

Angelina now has a baby sister named Polly. Unfortunately, Angelina's parents are too preoccupied with Polly to give Angelina attention and are quite disorganized. Angelina then becomes jealous, frustrated, neglected and upset, and starts whining and crying as usual, and goes as far as to destroying her room out of jealousy because she feels like her family doesn't care about her anymore. Can the whole Mouseling family sort out the problem and reassure to Angelina that they still love her? Will Angelina accept her new sister?

Angelina and her friends start up a film based on Thomasina Tuttle, using Doctor Tuttle's video camera. Angelina becomes bossy, then falls down a hole. Her friends rescue her—all the while filming, which wins them an award.

Preparations for Queen Seraphina's visit are made. Disaster strikes when Louis and Maurice break the Queen's statue. Thinking Henry broke it, Alice and Angelina try to mend it. At the unveiling of the statue, Queen Seraphina is flattered.

Angelina wants Miss Lilly to be dedicated as Mouse of the Year. Miss Lilly gets so preoccupied with preparations for the award, that her dance class is in disarray. Miss Lilly turns down the award for her class' sake and Angelina feels upset about it.

Henry spots what he thinks is The Chipping Cheddar Witch. Henry and William follow the witch, then Henry winds up with a few mishaps frightening Angelina and Alice and they all realize the witch is actually Miss Lilly.

Anya comes for a visit as she wants to stay in Angelina's cottage. Angelina soon becomes jealous of Anya as she is getting better attention. She then snaps at her and Anya stays away from her. Eventually the duo get together again and enjoy themselves.

Angelina brings Polly to school for her Show and Tell with Ms. Chalk. But on her way into class, Angelina loses Polly and she begins to worry. However, Sammy Watts manages to find Polly for Angelina just in time for Show and Tell.

William wants to be part of Sammy's club. He gains acceptance when Sammy is in need of a new trolley from Mr. Longtail. He ends up letting Angelina and Miss Lilly down, but his and Sammy's lot make up for it.

Tomorrow is Angelina's grandparents 50th wedding anniversary. Grandma is unhappy that her husband is going to forget the event. Angelina tries to sort it out, but she ends up neglecting her dance practice. However, Grandpa has a nice surprise for his wife, Sophia.

Angelina finds a butterfly and takes it home. Henry lets it loose.

Angelina paints a picture for Miss Lilly as a Christmas present, then learns that The Pinkpaws will give Miss Lilly an expensive necklace

Angelina has to look after her young cousin, Henry at the Fair.

Garden gnomes are being stolen in Mouseland. Inspired by Monty the Mouse Detective, Angelina becomes a detective. At first, she finds nothing, but she soon discovers that Mrs. Hodgepodge is secretly mending the stolen garden gnomes.