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Xiao Liang was a retired military officer who was blinded on duty. Ma Lu, a newly graduated computer master, has just entered the police field and dreams of becoming a hero. In order to find a missing girl, the life trajectories of the two people began to intersect. The very different ideologies and life attitudes of the two generations frequently collide, and friction continues. After several contacts, the two began to understand each other slowly. But at this time everyone was involved in a huge drug trafficking case...