Fantasio discovers a ship in the harbor. The ship comes from the polar circle and is guarded very strong. A man of the crew, who jumped overboard, asks them for help: he is very sick and only one person can help. Spirou and Fantasio take Addington to the Count of Champignac. The Count discovers the danger: Addington comes from a scientific base from the South Pole, where they play with dangerous viruses. Spirou, Fantasio and Spip leave to the South Pole to prevent a global catastrophe. When they arrive there, they find out that some gangster try to use the deadly viruses for their own purposes. The clever trio tries to screw up the plan.
The heir of Lord Swimming Pool and Lady Victoria is kidnapped by two hoodlums in Spain. Fantasio tinkers with the on-board computer from Penelope when Spirou tells him the news and they leave immediately for Spain. Penelope goes crazy and scares the trio but they arrive save in Spain and take up the chase. The kidnapped heir is the Yorkshire-Terrier of the family. While one of the hoodlums tries to find a telephone for the ransom demand, the other hoodlum is walks the dog. On the beach the dog sees Spirou, Fantasio and Spip and he runs to them. The hoodlums take the dog and try to flee with Penelope. But Penelope is going crazy again and takes them straight to the police.
A competition is taken place in the city hall of Champignac. The competition is about to find the scientist who invented the best replacement for gas. It is the Count of Champignac against Don Vito Cortizone: The Count of Champignac with an ecofriendly essence of mushrooms, Vito Cortizone with a highly toxic fuel. Vito wants the whole world to fuel with his new gas. That is the reason why he takes part at the Dessert Valley Rallye because his win would make his gas famous throughout the whole world. Spirou and Fantasio want to prevent this and they start with Penelope and with the essence from the Count. During the rallye Vito plays bad tricks on them but with some help and cleverness they win the race in the end. The Count of Champignac is honored with a monument because he invented the ecofriendly essence.
Spirou and Fantasio are invited to visit a speech from the Count in a very modern skyscraper. They are very late and the strict security rules makes it even more difficult to get there in time. The speech of the Count is shown by video-conference to scientists of all over the world. Oscar and Marylin take part as well and it doesn't take long until Marylin takes over control over the whole electricity in the building...
Spirou and Fantasio visit the Count for Christmas. He shows them his newest invention: a thing, which looks like a hairdryer and can make anything very small. On Christmas Eve, Oscar and Marylin show up to have dinner with them. Spirou miniaturizes the turkey by accident with the new invention. Initially, Marylin is shackled and is powerless. But when she releases herself, the disaster starts. In the night she is moving around and miniaturizes Oscar, Spirou and Fantasio. As midgets they have to fight against Marylin but with help from Spip they will win.
Spirou and Fantasio want to visit the Count of Champignac but find he is gone again. In a video-message he tells them that he wants to spend six months in a greenhouse which, based on the living conditions of the Earth on a smaller scale. He tells Fantasio and Spirou that he already has plane tickets for them and that they can join him for the experiment in Cap South. Just at the moment when the experiment should start the system tells them that the front door was opened. Someone entered the greenhouse. To the dismay of the friends they have to face that Marylin has taken control over the greenhouse.
The Count of Champignac has a new invention: The sandroton is a thing, which can cut anything in a few seconds. In a press conference they report about this. The Count wants to sell his invention to the first government which has an idea for an humanitarian project. Vito sees the reportage in jail and has of course many ideas how to use the sandroton...
Spirou, Fantasio and Spip are on their way in Central Asia to find the famous 'Valley of the lost souls'. Their guide warns them about soldiers. At the last second they can escape, where the helicopter can't follow them. But there is a waterfall and they all fall down deep. When they recover, Fantasio suddenly wants to attack Spirou and Spip. Spirou learns from a travel journal that there are dangerous mosquitos, that make those bitten by them aggressive. Spirou and Spip have to bring themselves into safety.
One night, when Spirou and Fantasio investigate a smuggling-story in a storehouse of an airport, they discover two strange figures, who tamper with a box. The criminals notice them and disappear. When Spirou and Fantasio open the box, they find a Yeti. They wonder what do with the poor animal. If they inform the police, it can be possible that the Yeti will be locked up in the zoo. The only solution is to bring the Yeti back to its country. After a few difficulties they become friends. But of course the smugglers try to get the Yeti back. In a moment of confusion the Yeti runs off and disappears into the city. Spirou and Fantasio have to find him before someone else will catch him.
The Count of Champignac is invited to a luxury travel to San Martino by a rich industrialist. Spirou and Fantasio should join him, but something unbelievable happens: They oversleep the departure of the train and because of that Jessica joins the Count to San Martino. When the two heroes wake up, they jump in their car and follow the train. Both recognize that someone put them to sleep that they miss the train. It was Tonio Vertico alias Vito Cortizone, who passed off himself as a rich industrialist. He wants to kidnap the Count and is already in the train. But Spirou and Fantasio are able to save the Count...
Spirou, Fantasio and Spip travel to South America. They want to make a reportage about Native Americans in the rain forest. After they arrive, they meet an owner of a coffee plantation, who tells them strange stories. His whole coffee stock, together with his truck was stolen. Spirou and Fantasio sniff a chance for a good story and hit the trail with a coffee truck. Suddenly a tree grows up in front of them and takes the truck in the direction of the sky. An arriving helicopter grabs the truck with a magnet and flies away. The trio rent a plane and they search the area for a heliport. Then they are attacked by the helicopter and they crash in the jungle. The three friends are saved by Native Americans, who tell them about a secret armed camp in the forest. When they try to enter the camp, they are stopped by the coffee plantation owner and some of his people. He invented a liquid that can make plants grow very quickly and his intention is to become rich powerful. He wants to get Spirou and Fantasio out of the way because they know his secret. But in the end Spip helps them.
Spirou, Fantasio and Spip visit an exhibition of mobile sculptures to make a story about that. The high society is present and they are all celebrating the artist. Suddenly the sculptures become alive and start to run berserk: It was sabotage. After the chaos, Spirou and Fantasio have to realize that their car Penelope was stolen. Suddenly an anonymous call tells them where the car is: On a building site outside the city they find the car and a young man, who admits, that he stole the car because he wants to meet them. The situation gets more and more mysterious: Someone attacks Spirou and Fantasio and the young man disappears. With the help of Penelope and her board-program they can find the young guy and discover the secret...
Spirou and Fantasio are invited by their friend Louis to see his new invention and to write a reportage about it: Fossilandia, a large theme park with a jungle, robot-dinosaurs and - employees. Just when they arrive, they recognize that something is wrong. The employees have a strange behavior and the dinosaurs are aggressive. A pterosaurian even kidnaps Jessica, Spip and Fantasio. Spirou figures it out: Marylin is in the park and reprograms her robot-colleagues. Deviously Spirou can stop Marylin with the help of Spip last minute...
Vito Cortizone broke out of jail to find an Native American amulet, which has secret powers and his run of bad luck should end with that amulet. A Native American cell-mate of him tells Spirou and Fantasio that Vito found out about the secret of his ancestors and helps them to find Vito. In a plane, on the way to Mexico Vito finesse them and steals the secret map of the Native American, which shows where the amulet is. But Spirou and Fantasio don't give up and chase Vito not knowing which secrets they have to face...
The Count of Champignac has to go on a journey and leaves Spirou and Fantasio behind. Not much later, a vehicle arrives and the Count steps out. But the astonished friends learn that this is not the Count but his nephew, who comes from the future. He asks the trio to travel with him into the future to help him to solve a big problem. But the future has some surprises for them.
Vito is in jail and out of luck. He sends his former cell-mate to the Count of Champignac. Maybe he has something against bad luck. Rupert observes the Count in his laboratory while he shows a new magical fertilizer to Spirou and Fantasio: But despite the fertilizer, the plant dies. Rupert steals the fertilizer the next night to blackmail the Count: Either he finds something to help Vito against his bad luck or he will use the fertilizer at a certain place. To prove this, he uses the fertilizer to defoliate the city park. The Count is devastated. Spirou and Fantasio make a plan.
Jessica is researching undercover as a tramp for a reportage in New York to find out what happened to some disappearing homeless people. She doesn't know that she put herself in danger. She is kidnapped and wakes up in a medical laboratory, where the crazy Dr. Dean does experiments with the homeless people and changes them into babies to sell the babies. Spirou and Fantasio are on the scent of the kidnapper. They get to know the New Yorker taxi driver Spike Lee, who knows the city very well. Spirou has an idea: Fantasio should dress up as a tramp and Fantasio and Spike lie in waiting. The first part of the plan goes perfectly: Fantasio gets kidnapped and the friends follow him. But they are stopped by the police because they were driving too quickly and they lose track of the kidnapper. A race against the time starts: Are Spirou, Spip and Spike able to save their friends before they are sold as babies?
When Europe and Asia have problems with some mysterious rays, which jam for example electricity, the Count of Champignac is suspected to be responsible for it. Spirou and Fantasio look after that and they find out, that a friend of the Count, professor Macintosh who is a leading expert for radiology, was kidnapped and taken to a country where the dictator Gladimir Kisskiss has the power. The dictator has the opinion that the world is full of bad rays and he manipulates his followers so that they don't feel anything. Spirou and Fantasio enter the country and they witness that the machine from professor Macintosh has not the effect that Kisskiss hoped: instead of destroying all the other rays, he destroys the achievement of the wild running dictator.
Spirou and Fantasio are in Africa to write a story about poachers and they just get caught by them. But then strange things happen: It is in the night, when a mob of white, lightning elephants attack the camp. In the confusion, Spirou and Fantasio can free themselves, but Spip is left behind. They get a tip from a parking attendant that they should search in an old mission station. And actually there is an old Doc Touala, who constructed a machine, which can control the manners of animals. He wanted to stop the poachers with the help of the white elephants. But it appears that the parking attendant used them to follow the track of the Doc and that he is part of the poachers. Despite that, the white elephants act in the right way and our heroes can catch the poachers.
It was fifteen years ago, when the Count of Champignac and his colleagues decided, that they have to focus especially on one aim: To stop the starvation in the world. Now it is time that they all meet at the castle of the Count to show each other what they invented. The Count got a tip that someone of these people is a cheater, who wants to use the inventions for himself. He asks Spirou and Fantasio for help and with the support of Spip they are able to convict the cheater...
Spirou and Fantasio have a meeting with the director of a museum, who is understood to discover a place of bliss in the Arabian Desert. But when they become serious he doesn't want to know anything about it anymore. Then Stephanie appears and she wants to search for that place. Spirou and Fantasio follow her. In the desert, two guys offer themselves as guides. Spirou and Fantasio don't know that these two guys are criminals who also want to search for the place of bliss and these two think that Spirou and Fantasio have some kind of plan. In the middle of the desert the criminals attack them and leave them there. They are rescued by an old Bedouin, who has taken Stephanie as well. The criminals find them and after a wild chase, they all arrive in the place of bliss, which is a beautiful garden with a castle and a treasure. But the Bedouin knows to help himself. He has some incense which can clear all the memories.
Spirou and Fantasio traveled to the Caribbean because they were attracted to write a story about the singing mermaids. But it turns out to be different: A nightmare with unpredictable cliffs, a horror-castle and an elaborated maze with a wild panther in it. They are in the empire of Williams Windfall, who works together with his assistant to develop the ultimate game-show for the 20th century. The first price: their own life. Lucky for Spirou and Fantasio, Stephanie dressed up as a naive-rattling reporter, who makes her way to the command center. She saves them and stops Mr. Windfall.
The Count of Champignac invents a machine and that machine is able to transfer him into the genetic condition of his ancestors. The Count transfers into the alchemist Ebenezer of Champignac who was the owner of a formula to produce gold. The Count is producing a lot of gold and gives it to people in Champignac. The two criminals Vito Cortizone and Rupert are able to break out of jail again and they observe the Count. They both kidnap him to get his gold. It turns out that the gold is fake and the Mayor of Champignac wants to arrest the Count for cheating. In the meantime, Vito disappeared without his buddy and the fake gold. In the end, the Count is able to produce real gold and the whole city celebrates him because he gives the city a huge golden Mayor-statue as a present.
Fantasio is currently reading a lot of books about the middle age and he would like to know how it was living then. Aurelius offers him the possibility to go with him to the middle age but Aurelius prefers traveling to the Jurassic period. They arrive in this period, but there is a defect with the time machine and by accident they take one dinosaur with them to the middle age. The people there think that this is a dragon and Fantasio wants to be a hero and save the people...
Spirou, Fantasio, the Count of Champignac and some other scientists from all over the world are invited to the isolated estate of the stay-at-home millionaire Thorpe. Thorpe is working on the production of ecofriendly energy. His friend Basile de Koch, a big industrialist, seems to be interested in this experiment. When some of the scientists disappear, everybody gets scared. Spirou discovers a tunnel system under the estate of Thorpe, which is the center of de Kochs espionage. In this tunnel-system, he keeps the other scientists and wants to render them harmless, because he wants to keep producing nuclear energy. One of the scientists, a Japanese named Sushiaky, is able to do the 'Yakaya' scream, which can paralyze any enemy.
Spirou and Fantasio are in the mountains and suddenly they hear strange music, which is able to move things like rocks through the air. Spirou and Fantasio get into mortal danger and lose their equipment, but in the end Amadeus Destiny saves their lives. Amadeus Destiny is the owner of a lonely tavern, but he is not interested in any guests and he is very rude. In the tavern they meet Rose Destiny, who is the wife of Amadeus, and Grumbleston Woody, another guest. He is a strange guest, because most of the time he is playing with some of the weird instruments, which belong to the Destinys. Spirou and Fantasio want to clear up the mystery behind the instruments. They find out that it was planned to build a reservoir dam there but since the mysterious music is playing the workers ran away. Spirou and Fantasio follow Woody secretly in a big cave under the glacier with a hot spring and they see that Woody is playing with an organ. Because of his playing, a part of the cave breaks down but they save themselves at the last second. It appears that Moody is the head of the electricity society and he wanted to find out, what is the secret behind the music. Amadeus is the initiator of the strange music. His intention was to keep everybody away because he promised his deaf uncle that he would keep the valley as it was. But Woody calms him down and tells them that a reservoir dam isn't necessary anymore because the hot spring gives enough energy.
Spirou and Fantasio are on holidays in India. Fantasio buys a stone hand from a small guy, called Singhmabob, on a market. Just when he bought it, they are followed by a scary man, who has tried before to get the stone hand and who even threatened them with a curse. Back in the hotel, Spirou discovers a secret message in the stone hand. They are mugged and the hand is stolen. Spirou and Fantasio complain to the Maharadscha, but he says, that he can't help them. Later they find out that the daughter of the Maharadscha was kidnapped and they try to save her. The Princess is held at the temple of Pahtandjavel by a familiar person: Rasputnikov. He wants to steal the big ruby, the treasure from the temple, and he needs the help of the Princess. Spirou and Fantasio ask Singhmabob and his elephants for help to free the Princess, but he is not allowed to enter the holy ground of the temple.
Inspector Degloire is supervising the transport of a train with valuable paintings. Windfall, who is a criminal and obsessed with art, has two accomplices. Rice, one of them, has developed a machine with that it is possible to suck off the color of the paintings and they appear on another canvas. With the help of a fake insurance agent, they let the colors of the painting disappear and reproduce it at home at their own canvas. Degloire stands in front of some white canvas. In the meantime, Spirou, Fantasio and Jessica could get the machine and they are followed by the criminals and are attacked by an helicopter. They stumble into a dangerous situation but in the end they can deliver the criminals to the police.
Spirou and Fantasio should write a story about the secret experiments of professor ManuManu from Uhuvea. They are picked up at the airport by a beautiful assistant, called ToaToa, Suddenly the alarm starts and security arrests a man. When they arrive in the laboratory, they meet their old enemy Marylin, but her creator Dr. Oscar Lagare says, that she is harmless, because he reprogrammed her. Even the Count of Champignac is there and he tells them what it is all about. Professor ManuManu is able to produce a lot of energy with the help of a synthetically produced crystal. The experiment has only one hitch because it needs radioactive gamma rays, which already polluted one part of the isle. The Count of Champignac tries to absorb these rays with certain mushrooms. During the tests, they find out that Marylin didn't change a bit. She wants to become immortal with the crystal. Spirou and Fantasio can beat her in the fight but they are contaminated. With the help of the mushrooms, they are saved and the professor ManuManu stops his experiments.
Vito Cortizone is released from jail for good behavior. But of course, he only behaved good because he is planning a new crime. In one of the books, he read something about a monk, who discovered a diamond mine in South Africa. When he leaves jail, he dresses up as a monk and together with his friend he travels to South Africa to get the diamonds. Spirou and Fantasio nearly help them involuntarily...
The Count of Champignac made a new invention. The mycomousse should help the Hoopla-Native Americans to save their Hoopla-rock, which appeals to fall down. Bob Holgu, the grandson of the last medicine man, is happy when Spirou and Fantasio arrive with the miracle cure. But Vito Cortizone and Rupert upset their plans...
Professor Sushiaki, a friend of the Count of Champignac, asks him to make a visit on the isle Bill Bill in the South Pacific. He discovered a dangerous species: blue starfish, which turn into monsters. Fantasio sees a possibility to escape from the hateful winter and he dreams about the beach - but it doesn't take long and he wishes that he would have stayed at home...
Spirou, Fantasio and some other inhabitants of Champignac, including the Mayor, win a trip to Japan. While some people go sightseeing in the town, Spirou and Fantasio meet Yakito, the nephew of their friend Sushiaki. Yakito tells them that Sushiaki was kidnapped by strangers. They start to search for him together. In the process they bump into Marylin and her intrigues. She kidnapped Sushiaki, because she wants to know how the scream goes, which can paralyze other people. Marylin wants to build a robot army and her plan is to gain the power over the world. Spirou, Fantasio, Sushiaki and Yakito can stop her at the last second.
Spirou and Fantasio take a flight to Palumbia with the Count of Champignac in his newly constructed anti-gravity aeroring, where an ancestor of the Count lived years before. Shortly before they leave, Spip destroys a glass full of dangerous mushrooms. The Count gets some spores in his face and has conniptions from time to time and acts very stupidly. There is only one thing which can help him: the golden amber from the Kezakos. Just when they arrive in Palumbia a lot of things go wrong and Vito Cortizone is also there, because he wants to smuggle rubies. But with his bad luck the plane crashes in the jungle. Spirou, Fantasio and the Count of Champignac meet the Kezakos. They are very civilized due to the earlier stay of ancestor Wladimir of Champignac. When the headman Kingsley lead them to a cave, where the golden amber can be found, Vito and Rupert surprise them. They have weapons and force them to put the gold in the aeroring. Vito tries to escape without Rupert but the gold is too heavy and that is the reason that the aeroring can't start. In the meantime, the Count of Champignac is healed and they can stop the criminals.
Spirou and Fantasio are on their way to the Count of Champignac. On the way they meet Nudge and Philbert, who say that they are spelunkers and want to explore the cave of the Count of Champignac. But it appears later, that these two are bank robbers, who want to get to the strong room of the bank by boring through the cave wall. At the same time, there is a spread of influenza in Champignac. Even the Count is sick and that is the reason he tries to develop a medicine against it. The serum is not helping and the Count has to take normal medicine. Dupilon stays at the castle and has also influenza. He drinks both medicines and changes into a big, green monster. Dupilon scares a lot of people. Spirou and Fantasio search for him and the showdown starts in the cave.
Spirou and Fantasio discover a mysterious statue in the jungle. The statue should protect the entrance of the city Machou-Taychou, the capital of Yacca. Suddenly Aurelius of Champignac, an ancestor of the Count, appears and he invites them to a time travel to the time of the Yacca. He is on the scent of a mysterious time lag. The Yacca expect him as a messenger of the gods and he tries to save the culture from destruction through the Spanish conquistadors. He travels 1000 years back into the past. Spirou and Fantasio survive many adventures, but then they find themselves back at the entrance of the city. Did they just dream? Where are Aurelius and the Yacca?
The Count of Champignac gets a parcel from one of his colleagues, which contains a special mushroom. In connection with a special machine, invented by the Count, the mushroom is able to color everything close by black. The first try with his laboratory mouse fails. That is the reason that the Count travels to one of his colleagues, who owns some modern machines. Spirou and Fantasio stay at the castle while the Count is gone. Meanwhile everybody is busy with the mayoral elections. A police-car crashes and the policemen are brought to the hospital. The prisoner Vito Cortizone is brought to the police-station of Champignac. On the next day, Spirou and Fantasio search the mouse and suddenly there is a short circuit. Spirou and the mouse become black. Nobody recognizes him anymore and Spirou gets arrested together with Vito. Vito doesn't believe him in the beginning but later he does. Vito flees and tries to get the machine from the Count. In the meantime Fantasio searches desperately for Spirou. There is another short circuit and he becomes also black and gets arrested. There is a lot going on in the city and the Mayor makes a speech about being voted in again. The police search for Vito, Spirou and Fantasio, who could also escape in the meantime. Vito searches the machine and Spirou and Fantasio search for Vito to stop him. In the end they turn back normal and Vito gets arrested again. The Count returns from his journey and when he tries his machine, he gets black as well.
The Count of Champignac asks his friends Spirou and Fantasio for help because the computer- and video-cable in his bio-greenhouse in the Antarctic is broken. Fantasio believes immediately that it was their old enemy Marylin. And he is right. Spirou and Fantasio fly to the Antarctic and get in serious danger there...
Vito and his friend Rupert transport a valuable cargo with the plane. The cargo involves boxes with Ying and Yang stickers, which should bring bad luck to people, who buy them. The two criminals start to fight and Rupert crashes into the water. Vito is not able to fly a plane and the plane crashes down. Vito is able to save himself at the last second and he lands on a lonely isle. At the same time Spirou and Fantasio gets into a big storm and they also land on the isle of Vito. But in the beginning they don't recognize Vito because he has a beard and lost some weight. Vito put Spirou out of action and forces Fantasio to get the boxes back from the sea ground. Vito wants to leave the two behind on the isle but suddenly Rupert shows up. A new fight begins. Spirou and Fantasio use this opportunity and escape from the isle. Later, the two criminals are taken by the police.
Spirou and Fantasio go on a trip to the desert with their friend Clem to write a story about the last nomadic tribe. When they arrive there, they meet a strange man called Glahglah, who is a climate scientist. It turns out that the man is an assistant of Windfall, a criminal, who wants to misuse the inventions of his colleagues to earn a lot of money...
The chief editor of Spirou and Fantasio force them into a new adventure by a trick. Twame Touala needs help very urgent. The multimillionaire Hillary Hauley tries to get the treasures from native people, which they drown in the Kanvala-Bobo sea to honor the god, with the help of the self made sea monster...
Vito and his accomplice Rupert rob a bank. Vito is caught and Rupert doesn't know where the theft is. Vito has bad luck and his attempt to break out of jail fails. That is the reason he wants to get the lucky boys Spirou and Fantasio as good luck charm. Spirou and Fantasio arrive there, because Vito tells them a good story. Vito kidnaps them and with the help of Rupert, they can escape. But Vito has bad luck again in the swamp of Florida and they need the help of the small radio device from Fantasio.
Spirou and Fantasio want to go on holiday to Scotland to visit professor Mcintouch. But already on the rail journey they are involved in a new adventure. Moreno, who is a corrupt scientist, steals animals from his colleague Tarentulo to transform them. But professor Mcintouch, Spirou and Fantasio can prevent the worst case...
Spirou and Fantasio want to spend their vacation at the castle of the Count of Champignac. Aurelius, the nephew of the Count, is also there. He is listening to a song from Ce-Dee alias Marylin and gets charmed by the android Marylin. That happens to everyone who listens to the song. Luckily the Count of Champignac developed earplugs and with them it is not possible to hear anything and so they are immune against the song. Furthermore he develops a remedy CD, which neutralizes the song. Spirou and Fantasio fly to Los Angeles, where Marylin is playing a huge concert. They play the CD and everyone is healed. But Marylin swears to come back to take revenge on them.
Spirou and Fantasio return to Champignac and find an empty castle. The Count was kidnapped by the king of disguise Rasputnikov, who was dressed up as mayor. They start to search for him and they recognize that the village looks different and the people are not happy to see them. On their way back to the castle, the bridge is melting. Furthermore they see that the river is polluted with a green stinking mixture. They keep the track and end up in an old factory, which is the command center of Rasputnikov. He keeps the Count there to blackmail him with his knowledge. His aim is to get world domination with the knowledge. Spirou and Fantasio can escape from an attack and the Count develops a bomb out of chewing gum, with which they can destroy the factory. In the end the good guys win and the mayor has to apologize.