Stella wants to travel from Naples to Budapest, and the best solution seems to be to hide in a truck heading to Budapest. Her idea is followed by action: Stella secretly boards the truck of Franco and Vanni.
Franco and Vanni, along with several other truckers, are delivering aid to a starving population in Africa. There, they take on a new carriage through the jungle, where a beautiful young girl guides them. But they get lost.
Before Franco and Vanni set off on their next journey with the truck, someone changed the container on the truck. At the same time, masked men kidnapped Orazio's daughter, Gio.
Franco and Vanni plan to enter the famous Paris-Dakar car race. However, a gang install a rocket on their truck, with the intention of having the truck drivers take the "shipment" to Dakar without them knowing.
This time Franco and Vanni are transporting a circus elephant to Hungary. In the meantime, they go for a new shipment, where they receive a diamond that criminals also want to get their hands on.
Franco and Vanni are transporting medicines and medical supplies - across the Sahara. During the journey, it turns out that they are not actually transporting medicines, but weapons.
This time, Franco and Vanni are transporting 42,000 chickens by truck to Hungary. However, their journey is not without its problems: an escaped prisoner forces them at gunpoint to take them home.
Giovanni has a minor accident in Kiev, and Orazio has to go out to get the truck. He's happy to do so, because - despite being there during World War II - he has fond memories of Ukraine, especially of a girl who lived in Kiev at the time.
Franco and Vanni get into a fight in a Hungarian restaurant and are arrested. To clarify the matter, Orazio and Gio travel to Hungary. The police release the truck, so Orazio can drive the truck home, but has a heart attack on the way.
Franco and Vanni are transporting technical equipment to the World Ski Championships in St. Moritz, Switzerland. On the way, at an abandoned house, a strange couple gives them 4 million Swiss francs in a bag.
Orazio ends up in the hospital with a broken leg and accuses the drivers of a rival company of intentionally causing the accident. This is when a ruthless competitive battle breaks out between the two companies.
Mrs. Róza is preparing Jan Van Eyck's painting, The Man with the Red Turban, for an exhibition in Locarno. An art dealer likes the excellent copy and offers 10,000 francs for it if she exchanges it for the original.
