The celebrities begin their shift as policemen at the Yongsan Police Station, which is responsible for protecting Yongsan District in central Seoul.

Jang Hyuk, Jae-yoon, and Tae-hwan head to Huam-dong to investigate the scene of the fake bleach incident and the dog abuse case.

The intelligence team goes undercover to learn more about the fake bleach incident. Later, Jang-hyuk subdues the suspect with the strength of an actual detective.

Kim Min-jae, an actor who has played numerous detective roles, takes on the role of a real detective for the first time. Meanwhile, Jang Hyuk gets promoted from new member to senior member.

What is the naked truth behind the dog abuse suspect's outfit, all suited and booted with a pair of slippers to match? 'Take off your police badge!' the Intelligence Unit at the scene of a late night raid! Getting used to field work, Jang Hyuk returns to the office and immediately puts himself forward for another investigation!

Kim Min-jae shows off his talent to surprise the intelligence team; Jang Hyuk gets assigned to a voice phishing case and engages in a chase with the perpetrator.