Spirou and Fantasio are waiting to see their report on television on climate change but the TV signal is taken over by Zorglub, a failed scientist and former student of Count de Champignac. He announces he has created a machine to control the climate for the well-being of the earth. Spirou, Fantasio, Spip, the Count of Champignac and Seccotine leave to arrest Zorglub and head to a small island where he has built his base.

The Zorgloids take the prisoners - Spirou, Spip, Fantasio, the Count of Champignac and Seccotine - to Zorglub. He agreed to speak with the count but he put the others in his prison. A moment later, Zaoki, Zorglub's daughter, comes to rescue them…

Zantafio is a cousin that Fantasio had lost touch with, but he joins forces on an expedition that brings together our two heroes and Champignac. The goal of the expedition is to find the “Hammer of Thor,” a Viking antiquity with supposed powers, lost in the ice.

During a conference, Zorglub decides to kidnap personalities, each one as different as the next, from athletic sportsmen to the best scientists, including underground drilling professionals. His goal: to repopulate his ark with the help of the elite of all categories present on Earth.

Yamanoke is a young scientist who developed the AOB - Alpha Omega Beta - a ray capable of animating objects. Champignac, the young man's scientific godfather, comes to watch the tests. He is accompanied by Spirou and Fantasio who are covering the event. After a surprising demonstration, the trio goes to an opening at the city museum where Seccotine is on location for a report on the new exhibition. Things soon become complicated…

Zantafio develops a hypnosis process on the sweet Luna (the daughter of the mafioso Vito Cortizone) in order to make her commit repeated thefts of different components aimed at becoming, once assembled, the most powerful weapon in the world.

While flying aboard a model piloted by Spirou, Spip goes missing. The two heroes lead the investigation and uncover a series of kidnappings of animals with particularly developed intelligence. These kidnappings are the work of a mad scientist who wants to catalyze these superior intelligences to transmit them to all animals in order to allow them to take revenge on men.

On the island of Balu Balu, strange things happen to several tourists. They all turn green from head to toe. Sent on a report, Spirou and Fantasio quickly discover, with the help of Seccotine, that Zorglub is involved in this affair. He wants men to pay for the destruction of the environment by becoming plants producing oxygen...

It's Fantasio's birthday. Spirou and Fantasio go to see Champignac, who has just created Robert, an ultra-sophisticated robot that obeys the finger and the eye. While Spirou and the Count go to town to get Fantasio's gift, Fantasio begins to play the joys of voice control with Robert. Until the information Robert receives goes wrong...

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