The plot of the series focuses on various stories from the working days of the rescue services. These people work both day and night, providing security and timely support to all those who are in trouble. The project "9-1-1" will tell about the employees of the police department, ambulance and fire department. Often these people have to work together, because the incidents can be completely different, and the non-intervention of these specialists will lead to disastrous results. From day to day, emergency situations occur on the territory of the city and in the nearby suburbs, requiring an immediate response of emergency services. However, behind the masks of professionals, there are also ordinary people who have families, friends and a rich inner world.