The girls return to New York City to visit their pen pals, and they get to dress up for a PROPER American Halloween Night out in the city.

The girls' pretend radio show accidentally gets broadcasted to the entire city.

During spring in Paris, Madeline falls ill with some sort of sinus issue. Doctor Cohn suggests that she go someplace warm and sunny, and the gang all head down South to the French Riviera in Cannes.

Chosen to be a model for a painting, Yvette shows off and that makes everyone else jealous and uncomfortable.

Madeline and the girls play matchmaker and are invited to be in the resulting wedding.

The girls take a trip to Africa.

Madeline, the girls, Miss Clavel, and Lord Cucuface spend Christmas at the North Pole.

Madeline helps Santa Claus deliver Christmas presents to children.

A new girl named Lakshmi comes to the Paris boarding school from her homeland of India for a month.

While touring Versailles with Miss Clavel and the girls, Pepito disobeys a "Do Not Touch" sign, and leaves fingerprints of mud and chocolate on a priceless harpsichord. Pepito feels more and more guilty until Madeline finally convinces him to fess up and face the consequences.

When the pipes burst and the old house is closed for a plumbing overhaul, Madeline and the girls move into Lord Cucuface's lavish suite at the Ritz. While there, they help a lonely rich girl and a hungry homeless girl, and soon discover that they'd rather have each other's love than live an empty upscale existence.

Madeline, the girls and Pepito are upset about receiving minor roles as trees in the school play and decide to boycott the show.

Madeline and the girls help to reform an unhappy puppeteer in the Jardin de Luxembourg, who, because he never had the talent to be an opera singer, puts on marionette shows that twist the plots of classic fairy tales and disappoint children in the audience.

Madeline gets a new pair of ice skates for her birthday and becomes so obsessed with practicing her skating she doesn't have any time to play with her friends. When she is pulled out of the blanket, Madeline spins around like Taz for a few seconds before wobbling about and trying to regain her balance.

When Madeline and the girls go to Dr. Cohn for a physical, all the girls have grown several inches except Madeline, who has a dream that she will be Tom Thumb-sized for her whole life. In the end, she feels better when she discovers that Georgette, the tallest girl, has size issues as well.

When Madeline and the girls are given the opportunity to be high fashion models and meet the top designer Mme. Cliché, they are asked to wear creations made of cheese and discover that fashion is fickle and it's what's inside that counts.

After Pepito burps at the dinner table, his parents insist on sending him to etiquette school, where he is joined by Madeline and the girls. After they graduate, Pepito's unruly cousin Pablito tries to convince Pepito that manners are uncool, but Madeline helps Pepito see the light just in time for him to put on his best behavior during an event for the soccer star Pepe Pelota.

After Pepito and the girls go to see Harry Houdini's show, Pepito decides to create his own magic show at home, and puts poor Genevieve in danger. Houdini helps the children see how to use magic properly and shows them how to appreciate the gifts they were born with.

Madeline and the girls become extremely jealous when lovesick Genevieve falls in love with a neighborhood dog, but in the end, Madeline helps the girls realize that Genevieve has plenty of love to go around.

While touring Lord Cucuface's perfume factory in Grasse, Pepito finds a friendly skunk, which he sneaks into the factory. When Chloe, offended by the skunk's odor, dips it into a vat of the latest perfume, Madeline and the girls have to "fix" the perfume before anyone finds out.

After Madeline performs a successful science experiment dropping an egg off the balcony of the old house without breaking it, Pepito dares her to drop her egg off the top of the Eiffel Tower, and the two end up getting stuck in an elevator there, and being forced spending the night. Pepito and Madeline share their knowledge. Pepito shows her Morse code, and Madeleine shows,... well... her hunger.

The girls are planning a spring tea in honor of Lord Cucuface and the trustees when Sugar Dimples, the child movie star, drops in to visit and takes over, turning their simple party into a major "Hollywood" production, with over-the-top results. It is up to Madeline to bring the party down to earth and remind Sugar Dimples that it is the company that counts, not the lavishness.

When Lord Cucuface becomes suddenly indisposed, Madeline takes over his mission to impress some American tourists who are potential donors to the girls' school. She tells them that she is a famous tour guide, and finds she must lie more and more as she takes the eccentric couple around the Louvre, until they are all hopelessly lost and she is forced to come clean and tell the truth.

When Genevieve wakes up with a strange rash, Dr. Fleabag the vet prescribes lots of loving care, which Genevieve enjoy so much that she begins to fake ailments.

When Madeline and the girls find some collectibles from the 1800's in the attic of the Old House, they decide to set up a booth at The Flea Market and unwittingly sell Pepito's father's Ambassador ring (which Madeline tracks down using her detective skills).

A man pretending to be Madeline's uncle kidnaps her and plans to steal her inheritance.

When Madeline tries to stop thieves in The Louvre, she is accused of misbehavior and sent off to a London finishing school to improve her manners.