Christopher Plummer

When the girls go for pony rides in the park, Madeline's pony, Gallop, (the smallest) does all sorts of fancy tricks and finally takes off, trotting across Paris! Soon they are discovered by Buffalo Ben, who invites them to appear in his touring Wild West Show.

The newspaper sponsors a treasure hunt leading to a chest full of money. The clues lead the group to famous Paris landmarks, where the girls lose valuable time when they stop to help people in trouble (like a little boy whose sailboat has blown away). When they reach the treasure chest, someone else has arrived there first.

Genevieve digs up a huge bone in the garden that turns out to be a fossilized stegosaurus' hip bone. The girls are thrilled with the discovery until the Old House becomes a dig site and is invaded by hordes of paleontologists and equipment. Calm is briefly restored after Miss Clavel convinces Lord Cucuface to donate the bone to a museum.

The American child star Sugar Dimples becomes homesick when visiting Paris, and especially misses Halloween, which is not celebrated in France. At first Sugar Dimples does not appreciate the children's efforts to cheer her up, even when the girls and Pepito turn an abandoned castle into a haunted house.

Pepito becomes frustrated when an old lamp from the Embassy attic fails to produce a Genie, and he throws the lamp in the trash. That night a frayed old Magic Carpet comes to Madeline's window and asks her help in finding the discarded lamp, because it does indeed have a Genie inside.

After Miss Clavel inspires the girls to read more books, they decide to put on a presentation of "The Hunchback of Notre Dame. " Pepito refuses to play the title role because he is embarrassed to portray an ugly, deformed character. In an attempt to change his mind, the group visits Notre Dame where a scary real-live hunchback swings down from the bell tower and carries off Miss Clavel!

Madeline, Pepito and the girls take the famed Orient Express to Istanbul to compete in the International Spelling Bee. When a snake charmer on the train announces that his prize cobra is missing, Madeline and Pepito volunteer to search for the missing serpent (although the other girls refuse).

Just in time for Easter, Madeline updates the old hat belonging to Bon Bon, the milk horse. But then an enormous gust of wind sends the hat flying across town, into the shop of a struggling designer, who attempts to market it in time for Easter.

It is Madeline's birthday, and Pepito and his father take her to the zoo while Miss Clavel and the girls get the house ready for a surprise birthday party. But when a mischievous monkey lets all the animals out of their cages, Madeline feels responsible and fails to make it home in time for the party. In the end, Miss Clavel relocates the festivities and Madeline gets to celebrate with her animal pals.

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. A millionaire "rewards" Madeline by giving her the Brooklyn Bridge. Madeline is thrilled until a truck spills peanuts, popcorn and other snacks all over the roadway, causing the detained motorists to become irate. Madeline is given hero status when she donates the bridge to the city, and the girls are equally revered...