"Piatnitski" - the five exciting two-part story, the protagonist of which will become the characters in the popular series "grouse." As the branches from the main storyline, the films from the series "Piatnitski" tell us about events happening in parallel events of the third season of "grouse". And, naturally, was called "Piatnitski" history's best friend and colleague Gluhareva - Dennis or Dan Antoshina.