Gun Woo officially joins the team and puts his investigation skills to use as they track a hacker known as the Mermaid.
| Title | Episode 4 |
|---|---|
| Genres | Crime |
| Release Date | 2015-06-23 |
| Episode Runtime | 01 Hours 05 Minutes |
| Season Number | 1 |
| Episode Number | 4 |
| Production Companies | Kross Pictures |
