Every night, the Mainz police teams head out into the unknown - to help, reassure, de-escalate, arrest or take a close look at crimes and deaths. Unusual missions often await them. The SWR documentary series gives an exclusive and unadulterated insight into the demanding work of the Mainz police. It shows the police officers behind the uniform. Night Patrol’ accompanies the authentic everyday life of the Rhineland-Palatinate police: What challenges do the officers on patrol, the officers of the criminal investigation department and the motorway police have to contend with? How do they feel when they make the city a little safer night after night? Are there any police operations that place a particularly heavy burden on them?