The main hero of this series set in present times is Honza Boudny, a detective. He was injured in a shoot-out during a police action, with the result that he is bound to a wheelchair for life. But for the resolute young man this does not mean the end. While still at the rehabilitation center in Kladruby, his friend and colleague Lada comes to him asking for help with a case that has its roots here at this institution. After his release from the center Honza decides to become a taxi driver. In a large city like Prague there is no lack of customers nor of mysterious and criminal cases in which a taxi driver gets involved all too easily. And then of course he helps his former colleagues to resolve them.