Aeon's brother holds the mayor at gunpoint and threatens to blow up the entire building if the mayor won't admit to his corruption on live television. Hoping to get him to step down, Aeon volunteers to confront her brother.
Aeon finally catches up with Heuk-Chul right when he finds the Chief Inspector murdered. While trying to catch him, they are both attacked by the man who has been responsible for carrying out the mayor's dirty work, only known by his code name Ryohei.
Heuk-Chul intercepts a payoff being made to a senator to get him to vote for the new health care law. When Aeon tries to investigate the robbery, which is linked to several others, Myeong-Chul tells her to focus on catching the criminal.
While Heuk-Chul's at dinner, a robbery is committed against the Chinese Ambassador. The robbery goes horribly wrong when an officer is shot down. Even though Heuk-Chul tries to chase them down, he's unsuccessful.
When Chuk-Heul goes to an abandoned building where his mother once worked, a fire starts and he realizes there is someone locked up in the building. Unable to rescue the woman, Detective Yoon arrives and begins to investigate the young woman's death.