Yubin arrests a suspect who reveals that someone else has stolen the painting. The team goes undercover to catch the real culprit.

The Violent Crimes Unit tackles an illegal gambling case, uncovering the MZ Union. Yubin forms the Dongbang Group to catch the leader.

Yubin's team goes undercover, gaining influence with a flashy social media account. Yubin secures a meeting with the MZ Union's right-hand man.