Professor Robot and the Gang of Vandals

Professor Robot is a world-famous inventor of robotics technology. Experts consider his humanoid robots and artificial intelligence to be the most advanced in the world. On this occasion, he is called in to solve a completely different problem. A gang of notorious vandals has been graffitiing and causing enormous damage to the public tram system, evading the police for months. The Professor enlists the help of his precocious grand-daughter and her geeky brother to help his team of robot engineer