This is a documentary about the police in Shanghai. It truly records the front line of urban public security management. It focuses on the people's police around us, and shows their carefulness, patience and excellence during work through some cases. It lets us feel the temperature of Shanghai and builds a bridge between people and police to have a more harmonious relationship. This documentary tells 7-10 stories including social hotspots as the loss of minors and the absence of guardians, as well as some daily works of police like resolving neighborhood conflicts and family disputes.