Challenge is a crime drama with some comic and romance elements.
Two inseparable friends – former policemen who ostentatiously left the service opens a pub and a haven at a charming lake. The case makes them hit the middle of a criminal riddle about a drowning man, afterburner trade and a local businesswoman entangled in everything. They help the local police chief commandant. Things get more complicated when a young girl – – comes to work in their pub. It is the daughter of one of them, they had no idea about her existence. Plus, the summer is conducive to hot feelings and the protagonists get romantically involved with both the suspect and the beautiful policewoman.