A couple of Shufongfong lizards, an extremely rare breed of lizard, has been kidnapped while on display at the New Mouse City Museum. Geronimo thinks that there is a link between this disappearance and the visit of Prince Nogouda. His doubts lead our heroes to the heart of the Bandel Jungle and they find that Prince Nogouda keeps more animals than just lizards in his collection.

Geronimo cannot avoid remarking that despite all his efforts to avoid leaks, his competitor for The Rodent's Gazette, Sally, at the Daily Rat, scoops his stories regularly. When he is invited to the 100-year anniversary of New Mouse City, he forgets to destroy his notes before giving them to his pupil for disposal.

Geronimo is invited by an old filmmaker friend to visit the set where he is making an action film. Convinced that he could draw an interesting article, he brings his whole team, but a series of unpleasant events disrupt the movie shoot. We learn later that the star was the one disrupting the shooting, because he had discovered gold in the mine and tried to keep everything distracted so he could take the precious metal.

Something strange happens at the New Mouse City Museum. It is said that a mummy walks in the evening and sometimes even in broad daylight, which scares the visitors. Certain of finding a logical explanation, Geronimo agrees to dedicate an article that will prove that there is no mummy. But it does exist and our reporter will soon discover that she hides a thief named Shadow.

Sally, the owner of The Daily Rat, wants to publish a sensational new story in her newspaper. She therefore invents a story about Barry the Mustache, a well-known gangster. She hopes that Geronimo will fall into the trap, and that, unable to resist stealing the story, he will make himself ridiculous. But the two journalists find themselves in very awkward position when the real Barry the Mouse-tache presents himself in person!

Geronimo seems to have demonstrated strange behaviour and is accused of misdeeds that he is quite sure of not having committed. Our heroes investigate and catch someone! They find out that Sally has hired a Geronimo look-alike to defame the reputation of her enemy. To defeat their plans, Geronimo decides to beat her at her own game.

Geronimo receives an envelope posted forty years ago. It contains an incomplete map accompanied by very mysterious instructions. Using the map, Geronimo and his friends set off in search of the true recipient of the letter. Believing that they will end in a fabulous treasure, they thus traverse halfway across the planet to China.

Geronimo having worked to excess, needs to rest. Trap talks to him about a specialist who hypnotizes people to help them relax. This is how Geronimo will meet the flamboyant Ratswami. Shortly afterwards, New Mouse City is touched by a crime wave while our favourite journalist is as tired as ever. Everything is explained when we realize that by posthypnotic suggestion from Ratswami, Geronimo, without his knowledge, built a huge hypnotism device in the middle of the city that allows this swindler to carry out control of the entire population.

Geronimo receives a very surprising invitation. He is invited to a martial arts championship in a dojo in the mountains of Frozen Fur Peak. Once there, Geronimo and his friends make a strange discovery: after each game, the winner disappears without a trace! Could it be that the mysterious competitors’ equipment masks of rat-jitsu are there for something?

Some say that Geronimo is on the brink of professional exhaustion, Ben and Trap invent a story to keep him away from his work. They pretend that a seafaring monster is sowing terror in New Mouse City's port. Geronimo intends to prove to his nephew and his cousin that such monsters do not exist. But Captain Ranois, a pirate without scruple, captures our heroes because he needs a crew to go in search of a missing treasure.

The great Sourishi, a person who lives in isolation, will grant an interview to exceptional people wishing to meet him. Geronimo and his friends take Rodent-Express, the only means of transport to reach the high mountains in which the Sourishi has retired. But during the journey, we see the disappearance of Pandora. Our heroes are busy solving the mystery. Not easy when all passengers become suspects!

Geronimo is too busy to regulate all the details of his daily life, and does not take care of his house. Ben suggests that he hire a maid. Professor Cheesewheel, answers the advertisement. He proposes Geronimo should fully automate his house and procure a robot valet who will answer all his needs. Geronimo is not very convinced, but he agrees. As it turns out, it was also a way of distraction plotted by Sally that ends with Cheesewheel stealing an airship arriving in New Mouse City that Geronimo was also going to do an article on.

New Mouse City's museum is constantly haunted by African spirits. Wanting to make a report on this exhibit, Geronimo starts a journey in Africa with his friends. He wanted to discover the secret surrounding the disappearance of an adventurer who volatilized a site there long ago and whose traces have never been found.

World renowned chess champion Gary Gouvov has to face a super-computer. This is the chess tournament of a lifetime! Fortunately for Geronimo, things are rather calm in New Mouse City. He can therefore afford to attend the event. During his absence, the Diamond Gang comes to perpetrate a series of crimes and Ben and Thea find themselves alone to investigate these crimes.

While New Mouse City is affected by a wave of spectacular burglaries, Thea remains untraceable. It does not take more so that Sally will immediately put suspicion on her, which ruins the reputation of The Rodent's Gazette. Helped by Trap and Ben, Geronimo quickly discovers that the real culprit is none other than Prince Nogouda, an old acquaintance, and that the latter has been in search of a princess, in order to keep his title as prince of the Bandel Jungle.

Thea finds it unfortunate that her older brother is living a bachelor's life and decides to sign him up for a dating agency. But is it really a good idea?

Under the seal of confidence, Geronimo is made aware of the latest news in the field of fashion by Philipilino, a renowned fashion designer. But Sally also tries to break the secret and tries various underhanded means to get it first. Geronimo will have to fight to defend his reputation.

Geronimo and his friends agreed to help Professor Ranobel in his research on the melting of the ice cap, so they embarked for the Arctic. But the crossing is far from being as calm as their ship is attacked by one of the most terrible creatures of the ocean, and the captain of the ship is not all as it seems.

All the cheese of New Mouse City seemed to vanish. Even the cheese kept for emergencies! Geronimo is looking for a good shot. He finds himself not only in the heart of the cheese mystery, but face to face with a formidable criminal, who stole all the cheese and is intending to supply it to the city.

When a theater in New Mouse City struggles to keep afloat, Geronimo agrees to write a long article on their most recent show. But strange events that occur in the vicinity of the theater threaten the production.

Benjamin and Pandora are invited to test a new video game platform. They quickly discover that they are then taken prisoner by the owner of the enterprise, who stole the game from what was initially thought to be an intruder, but in reality, was the original creator of the game. Geronimo, Trap and Thea rush to their rescue, but they too will have to fight for their lives.

A benevolent hero multiplies his good deeds all over New Mouse City. But Geronimo is rather skeptical before so much eagerness... Especially when he realizes that his actions are only the fountain to feed Sally's paper, the Daily Rat.

A cycling race goes through New Mouse City. For some time, the cycling champion Jacques Cheese, a friend of Geronimo, accumulates bad luck. The ace of the reporters intends to get to the bottom of things so that his friend can return in the race.

Mr. Nibbles, the little hamster of Pandora, escaped. With Ben, she follows in his footsteps. They arrive at the castle Beaupelage, an old residence long forgotten and home to ghosts. There are noises to be heard. Our heroes search the property. They will find much more than a simple hamster...

Too busy to attend an experiment on intelligence, Geronimo delegates his cousin Trap. But a problem arises during the experiment, and Trap returns changed, so intelligent that it is really annoying. Our friends intend to bring back the old Trap, before this change becomes permanent!

Geronimo has just finished writing his latest book, The History of Tea, he decides to go himself to deliver his manuscript to his editor. While he is at the station, his briefcase is automatically exchanged with that of a secret agent serving a malicious government. Geronimo, who wants to recover his manuscript, embarks on a fierce pursuit that will take him to the four corners of the city.

Geronimo Stilton reunites with Professor Ravenrat, his old mentor from his days of the university for an interview, but gets a surprise of his intentions, he wants to wipe all out the information in the world for himself!

Benjamin and Trap win a trip to Egypt from a Jellybean themed contest, only to wander into a mess of trouble when they get lost in a pyramid...with an ancient curse.

A message from a long Transratania (Transylvania), telling that there are vampires on a blood feast, but as Trap suspects that it is from their distant relatives.

Geronimo Stilton is captured by pirates and is used as a hostage to an advantage of using the metamouse as a way to a sunken treasure.

When Benjamin helps a skater from a stalker, he ends up getting a secret recipe for a brand of potato chips, only to have Geronimo get kidnapped and forced by a business mouse Crunchrat to recreate it.

While on vacation in South America, the Stiltons end up in a case dealing with a fire breathing dragon, only to find that Crunchrat is actually deforesting the entire Amazon to produce boxes for his chip making business.

The Stiltons help the mayor of Cactus Gulch deal with a ghost of a certain old enemy of the mayor's great grandfather, which also involves a plot about the existence of silver in Cactus Gulch's abandoned mines.

Invited to Whiskeristan (Pakistan) by the new king, Liu Shi Mew, to broadcast an ancient race around the country, only to encounter a ploy not only to steal the artifacts, but also attempt to murder the new king.

Benjamin and Pandora win a trip to Chauncey's cheese factory only to get into a mystery of a new stolen cheese invention.

Geronimo suspects that a Cave Mouse that Sally covered in her story is fake, which it is proven fake, but then ends up trapped in the Cenozoic Mouse World.

Trap becomes a model for a new fashion gazette, but it becomes a problem of unusual thefts in every part of the country he visits. Thea gets arrested for surfing on the beach in one of these places and becomes suspect for the thefts. Geronimo now must find the real culprit.

Trap falls for a mermaid that causes the ships to disappear into a whirlpool and all their belongings to vanish from them. Geronimo as usual during these circumstances tries to prove them wrong.

Note: The mermaid mouse is similar to the sirens from Greek/Roman mythology, but the singing is similar to Jodi Benson's voice tone from Disney's Little Mermaid when it was used to bait in the freighter ships. This was also one of Campbell Lane's last performances before he died of lung cancer on January 30, 2014.

Trap becomes the sole heir to a castle in Scotland, but ends up participating in a feud between two clans.

Big Toes (Bigfoot) is believed by Geronimo as a fake, but ends up finding more than a big footed monster but a tree that is sacred to the Algonquian mouse tribe that is endangered.

Nelson Napmouse vanishes from the world to the Berguda Triangle (Bermuda Triangle), leaving Geronimo feared, but the real question is does he want to be found?

A hero of mice comes to the Stiltons to find an idol only to realize he is actually a greedy con artist pretending to be him, meanwhile Trap deals with a mutt, which leads him to the real hero.

When an old enemy from the past comes to Geronimo Stilton's attention, he and Trap end up getting shrunk to the size of a pea.

• Note: Thea does not appear in this episode.

A mad scientist tries to revive the most powerful creatures that lived 65 million years ago, while framing Geronimo Stilton in a diamond robbery.

The North Pole is melting away to nothing, and Trap believes it's aliens from outer space. Meanwhile, Geronimo uncovers another plan of Crunchrat, which turns out to be him teaming up with Professor Cheesewheel to build a ray that melts all the ice.

When a shark attacks a surfing contest, suspicions go to a certain surfer, while Trap enters the contest by pure luck.

Two magicians blame each other for their magic tricks going wrong, but Geronimo might find a more logical explanation. Meanwhile, Trap tries to prove he has magic in his genes.

Crunchrat returns as the new head of the Dojo, but Geronimo has suspicions. Meanwhile, Benjarmin, Pandora and Trap are learning karate.

A mysterious book comes to Pandora and Ben's attention, which might lead them into a great discovery or a wild goose chase that would ruin Geronimo's reputation.

Professor von Volt invents a communication device and must use it to prove the animals that not all mice are like the poachers.

Their Grandfather is getting married, but they might not like the bride.

Geronimo tries to prove to a superstitious opera singer that luck has nothing to do with her lost charm, meanwhile Trap deals with him having to throw out items from his house to avoid it collapsing.

Notes: Another episode Thea is absent in, this episode was also the last episode co-produced by MoonScoop Group before that company was bought by EllipsAnime.

Geronimo and his family hear of the three witches terrorizing the people in Scotland.

Geronimo and his family have gone to Transratania to have a report about a fashion show there. At the same time, a weremouse (werewolf) is trying to frame one of their distant relatives there to think that he is the weremouse.

A famous tech company CEO's inventions gets lost in the desert due to thieves learning about through Geronimo's broadcast. Now the Stiltons must find it and battle Sally, Crunchrat, Prince Noguda and Ratswami.

Professor von Volt invented a mouse copying device but Trap copies himself so he does not have to help out Geronimo to clean the office for inspection in 5 hours. He makes 4 copies, which has hilarious results when they try to help Geronimo.

Geronimo finishes (somehow) his book in 5 days in hopes of winning the book of the year award. While he is successful, he falls into a deep sleep due to lack of sleep for the past 5 days. His family must somehow get through the day without revealing the fact the Geronimo is asleep.

Geronimo and Sally accidentally switch bodies in Von Volt's machine. Sally uses this fact to impersonate Geronimo and eventually kicks out his family from his office. Geronimo must do something about this before the change becomes permanent, and must stop Sally from selling the newspaper.

A huge rooster (Bantam} is terrorizing the theater, putting it on the verge of shutdown. Geronimo, Thea, and Benjamin investigate, while Trap tries to get into a play.

Thea attempts to break a record for parasailing. However, Trap crashes the metamouse into a luxury boat, whose owner generously offers them to take them to a port. However, the Stiltons soon learn that the owner is planning something horrific, he wants to destroy all the cheese in the world by using a satellite that will be launched into space!

A professor disappeared on a bayou and Geronimo and his family need to investigate. But a sorceress tries to stop their investigation.

A UFO has been seen in the desert and Geronimo and his family must investigate. Meanwhile, Trap brings gifts for the aliens.

Thea is participating in a Karate Championship in Whiskiristan, judged by King Lu Shi Mu, Geronimo's old friend. However, the King also has a task for Geronimo, to find out why the Guardians of the King, clay statues, are coming alive.

A strange monster is terroring beachgoers at Marzipan Island, and Geronimo investigates.

A famous circus is in town and Geronimo goes there in hopes of a good story. However, the star attraction, Augusto the clown, has disappeared, and Geronimo must investigate.

Thea goes missing on a volcano about to erupt in Miceland (Iceland). Geronimo must now rescue his beloved sister.

The Winter Mouse Olympics is being held and Thea is participating. However, after 4 athletes are sabotaged, suspicion goes on to Thea. Geronimo now must prove that his sister is innocent.

The head of the Mousitomo Clan invites Geronimo to help him recover the clan's stolen sword. Meanwhile, Trap wants to become a sumo wrestler.

A giraffe running through the streets wake up the Stiltons in the middle of the night. After getting it to safety in a vet, the Stiltons must investigate how it came into the city.

All because of Trap finding cheese in a space shuttle, he, Benjamin, and Pandora were sent into the moon and Geronimo and Thea must save them. Meanwhile, he discovered another plan of Crunchrat.

Dentures have been stolen all over New Mouse City, and Geronimo, Grandpa Shortpaw, and Benjamin investigate while Thea helps Trap pick out a car.

Geronimo needs to take a rest and Professor von Volt invented the computer for a virtual vacation. Meanwhile, Sally made a problem with the computer.

Geronimo, Thea, and Trap investigated a theft in the museum. At the same time, Benjamin and Pandora participated a skateboard racing competition.

A ghost busting team became famous in the city but Geronimo has suspicions about the ghosts while Thea has suspicions about the team. Meanwhile, Trap joins the team.

Thea is sick, while Geronimo, Trap, Sally, Simon, and a famous explorer are stranded on a mysterious island.

Thea is babysitting a baby for a friend. Trap decides to take care of it, while Geronimo and Thea have to deal with the fact that Sally is stealing their scoops.

Someone stole a film trophy and Geronimo must investigate. At the same time, he and his family are making a movie.

A famous video game developer's video game is stolen and Geronimo must investigate. Meanwhile, Trap decided to become a spy.