Professor Wilkens has invented a formula for a new type of fuel and puts it on a microfiche that he sends to his daughter and her bodyguard, but multiple different mysterious groups, including the "Chinese Carnation", would kill to get their hands on it.
Once upon a time there lived in the same village two men bearing the very same name. One of them chanced to possess four horses, the other had only one horse, so, by way of distinguishing them from each other, the proprietor of four horses was called "Great Claus," and he who owned but one horse was known as "Little Claus".
José María "El Tempranillo" fleeing from justice, takes refuge in Sierra Morena. After a period of hard learning, he becomes the leader of a group of bandits.
Lucky Jo and his three friends are little criminals, who try to live from small burglaries. But they never have luck - ever so often something inpredictable happens to Jo and gets one of them arrested.