Another team takes over the case, but Yu-bin's team secretly continues probing, sparking a showdown.

Tansik discovers a crucial clue after someone he knows is murdered. Yubin's team investigates and faces danger after sneaking into a restricted area.

Yubin's team gets CCTV footage of the brawler yet lacks proof. As the suspect sets to flee the country, Yubin rushes the evidence to the forensics.