Abenteuer mit Blasius plot
Two engineers have designed a deceitful, human-looking robot named Blasius and want to display it at the Leipzig fair. On the train they meet little Frantik, who wants to visit his friend Egon. Blasius grabs the two boys and kidnaps them. Frantik and Egon discover that he is a robot and that he is programmed to commit crimes. So they try to reprogram it and cause some confusion in the process. However, the two inventors try to get their robot back. After a wild chase, they all end up at the fairgrounds, where Blasius will show his skills to an enthralled audience.