Spirou and Fantasio has to find back the stolen plans of a new car, the turbotraction, printed on a microfilm, which is located in the horn of a feral rhinoceros in African savanna. This album is notable for introducing Seccotine/Cellophine.
Tropes associated with this story include
- Family-Friendly Firearms: The censorship commission made Franquin remove most of the bad guys' guns, which meant they were now pointing their finger at everything.
- Spy Cam: Seccotine has a little camera hidden in her powder compact , and use it to discretely take photos of the turbotraction.
