taking the work of the capital's grassroots police station as the content perspective, recording beijing through immersive shooting techniques CBD the police work of front-line police officers in the central area shows the police operation mechanism of the front-line of the capital's public security with vivid characters, vivid stories and unique perspectives. the production team went deep into six grassroots police stations in chaoyang district, and immersed in recording the daily policing, extreme tasks, life emotions and real moments of front-line police officers in the capital, used "small incisions" to reflect the "big theme", used "small stories" to tell "big truths", and used small feelings to express the great era. in the documentary, there are both young and handsome intern police officers and experienced veterans on the battlefield. through the police records they received, they show the warmth and coldness of the world in the prosperous city and the various lifestyles. bbb