The main heroes of the series are two detectives which accidentally happened to be partners. Due to this very accident the dramatic story acquires comedy tinges. Medvedev and Burov are absolutely different. The only thing that unites them is the thirst for justice they defend, working in the department for combating organized crime and drug trafficking. Despite the initial hostility having arisen between the two cops, the head of the department Markov decides to make them work as partners. The decision happens to be quite efficient for the department and the guys themselves. The situations they get into are often more dangerous than they can imagine.