Alarm at the Circus (1954)

Two boys from West Berlin, Klaus and Max, live in poverty. Their dream is a career in boxing, and they save every penny in order to buy boxing gloves with which to train. Nevertheless, it does not suffice. And so they let themselves be hired by the bartender Klott for a twisted scheme. By happenstance, Klaus overhears one of Klott's conversations in which he learns that he is intended to participate in a horse theft at the East Berlin Barlay Circus, where he just found some new friends. He is outraged and thus aids the execution of an adventurous intervention to obstruct the theft.