Police en service introduces us to a fascinating world. The series takes a different look at a police force, the Quebec City Police Department (SPVQ), which lets us through the doors of its headquarters and gives us unparalleled access to its personnel. The documentary series takes us to the heart of police officers' daily lives, putting the human element front and center. It follows patrol officers, investigators, sergeants, lieutenants and citizens. We discover different aspects of their profession, the social issues they face and the demands of the job, witnessing their great aplomb, their vulnerability too, but above all their unwavering commitment.