2. Episode 2

The police find a dead taxi driver in a burnt taxi.

3. Episode 3

In 1999, Zhuang Shu is caught due to a street fight and scolded by a police officer. Later on, Zhuang Shu learns the policer officer was killed.

4. Episode 4

Another Chengguan police officer is shot to death.

5. Episode 5

Zhao Xiaodong and Zhuang Shu go to Doctor Sun Tianfu's clinic to investigate.

6. Episode 6

Zhao Xiaodong finally catches the murderer.