"Not a single eye was dry" the day the Spanish Ambassador moved to London, taking Madeline's dear friend Pepito with him.

When Madeline and the girls visit a toy factory, Madeline is accidentally boxed as a "doll" and sold to a handicapped girl. The ailing child considers Madeline her only friend and is devastated when Madeline reveals her true identity and has to go home. But things turn around the next day when the little girl discovers she now has twelve real live friends.

Madeline, the girls, and Pepito prepare a disastrous meal for Lord Cucuface, who immediately enrolls them for cooking lessons at the famed Cordon Bleu. After various mishaps, the children finally get the hang of French cuisine, but Madeline fails to receive her diploma because she has given her creation to the hungry. In the end, Miss Clavel helps Madeline realize that the satisfaction of helping someone is more rewarding than any blue ribbon could ever be.

After being evicted from the opera for barking along with her favorite arias, Genevieve is dog napped by an impresario who sets her up at a dinner theatre. When Madeline finally catches up with her talented canine, Genevieve, now a star is reluctant to go home because she is still embarrassed about the incident at the opera. It is up to Madeline to convince Genevieve how much she is missed at the Old House.

Madeline, Pepito and the girls visit Miss Clavel's aunt and nephew in their Alpine chalet.

Madeline is 'discovered' by a Hollywood director and is transported to California for her motion picture debut with her idol, Sugar Dimples.

The circus has been cancelled because Monsieur Funnybones, the world's shortest clown, has lost his ability to laugh.

The girls are looking forward to a big costume bash at Pepito's house. But a week before the festivities they all come down with chicken pox and are quarantined in the Old House.

Lord Cucuface becomes convinced that the girls have musical talent and schedules a Bastille Day performance.

The girls and Pepito visit Pepito's relatives' hacienda in Spain and encounter Pepito's cousins who are naughty and mischievous 'bad hats', the way Pepito used to be (only worse!)

The girls find a homesick parrot who repeats the same street names over and over.

While on holiday in New York, the girls and Pepito attend a Yankee game, and Madeline catches the first home run ball of the season.

Madeline convinces the young Prince of Monaco to remove his crown so he can spend an afternoon as an ordinary boy.

Madeline, Pepito and the girls take the famed Orient Express to Istanbul to compete in the International Spelling Bee.

A paleontologist comes to the Old House after Genevieve digs up a huge bone in the garden, which turns out to be a fossilized stegosaurus hip bone.

Pepito becomes frustrated when an old lamp from the Embassy attic fails to produce a Genie, and he throws the lamp in the trash.

The newspaper sponsors a treasure hunt leading to a chest full of money. The clues lead the group to famous Paris landmarks.

Madeline, the girls, Pepito and his three naughty cousins go on a field trip to Egypt.

The girls want to get Miss Clavel a birthday present.

After Miss Clavel inspires the girls to read more books, they decide to put on a presentation of 'The Hunchback of Notre Dame'.

When the mice eat the cheese Lord Cucuface needs for his favorite dish, cheese fondue, Madeline, Miss Clavel, and Pepito drive to town to get another cheese.

For their entry in the Science Exhibition, Madeline and the girls create a magnificent scale model of a hot air balloon.

The American child star Sugar Dimples becomes homesick when visiting Paris, and especially misses Halloween, which is not celebrated in France.

Madeline rides a pony named Gallop in the world's biggest rodeo, Cheyenne Frontier Days in Cheyenne, Wyoming.

In the middle of the winter holiday season, Miss Clavel gets called away from the Old House to care for her ailing aunt.