With the help of Xiao Liu from the technical department, Zhou Hao used brain waves to travel back to a year and a half ago - the source of all Han Hao's tragedies. He tried every means to get Han Hao to return to the police station and hand over the gun. However, the unexpected happened. The two murderers of the Shuanglushan robbery and murder committed another crime nearby. That night, Zhou Hao led a team to raid the hiding place of the two murderers. Unexpectedly, they were kidnapped. Han Hao continued his work of hunting down the criminals. Zhou Hao's last memory was the blurry ruins in front of him...
When Zhou Hao opened his eyes again, he was lying on the humanoid bed in the technical room. He returned a year and a half later. Having just woken up, he was eager to find Han Hao. He wanted to confirm whether he was still alive. Colleagues told him that Han Hao died in the Shuanglu Mountain robbery case a year and a half ago. Zhou Hao felt a splitting headache. The memories after his coma slowly revived in his mind, and fragments of his life over the past year kept pouring in.
The person who secretly performed brainwave travel for Zhou Hao was Xiao Liu from the technical team, who was also Han Hao's subordinate. Every time the brain waves travel, Zhou Hao is required to come to their secret underground technical room, lie down in the sleep cabin and fall into a deep sleep. His consciousness will return to his body a year and a half ago, but he will only have two days to act. During those precious two days, the current brain waves will control his behavior, forcing him to complete the task of saving Han Hao. After the two days are over, his brain waves will return to the real time and space a year and a half later, and he will continue to live according to an unpredictable trajectory. No one knows what he faces every time he wakes up... Can he successfully save Han Hao?
At the same time, Zhou Hao in real time and space and Han Hao from a year and a half ago joined forces through magical and tacit understanding, and together they solved many thrilling unsolved cases.