The series will tell the story of the work of police officers, the Emergency Medical Service (EMS), and the fire department. They all carry out their duties, often risking their lives and facing the most frightening and shocking situations. The purpose of their daily work is to safeguard public safety on the streets and to help everyone in need. Police officers, firefighters, and paramedics work side by side in the harsh conditions of a large city. These emergency services must strive to balance saving those who are most vulnerable with dealing with problems in their own lives.