In 1976, at the end of the spanish dictatorship, six young guys are sponsored by a truck company to tour the world in a truck. They prepared themselves as professional explorers, but three years they have to quit and return home. At this point, the least expected member of the expedition decides to continue alone and disappears with the truck. He comes back few years later, without the truck, with many secrets of his whereabouts, and an obsession: to bring the truck back home. Now, 40 years after this adventure, he is ready to go and find it.