In society, there are all sorts of mysterious types, but in prison, they take on a different dimension as their mania for liberation often takes on dramatic proportions with cosmic garlands. One such inexplicable prophet, instead of breaking rocks, breaks the ears of others with his religious exhortations and, by taking Averell as a disciple, enriches his audience with one of the most significant simpletons in the society of criminals. And of course, an escape with the prophet takes on a different style when the end of the journey finds the Daltons in an earthly paradise, among equally inexplicable creatures as the prophet, harmless and innocent. The Daltons, of course, will try to elevate civilization as Joe says: "When there is anarchy, you establish a new order more easily," and everyone can draw their own conclusions! Lucky Luke, with the help of Prophet No. 2 Rantanplan, helps the Daltons find their own paradise in the well-known rock-breaking place, commonly known as prison.