فصل 1

A crime unit with the lowest arrest rate gets started on its first case with its new chief, Yubin.

بازیگران مهمان: 우성은

The team investigates a murder disguised as a suicide and gets in a bind as another death occurs.

The team advances the investigation with information from the witness. Yubin identifies the suspect.

A fire breaks out at a fried chicken shop run by Joongryeok's acquaintance.

بازیگران مهمان: Derek Chouinard، 남현우، 한예지

The team narrows down the arson suspects but hits a dead end. Yubin then proposes a shocking theory.

بازیگران مهمان: 윤재찬، 남현우، 반혜영

Following Yubin's lead, the team pivots their investigation and uncovers new information.

بازیگران مهمان: 윤재찬، 남현우

A six-year-old girl is kidnapped. Amid the kidnapper's threats, Yubin dismisses a prime suspect.

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

بازیگران مهمان: Park Cho-eun

Armed with Tansik's clue, the team sneaks into a restricted area and faces a perilous situation.

بازیگران مهمان: Ian H.W. Kim

The team identifies a suspect but lacks proof. Meanwhile, time is running out for them.

بازیگران مهمان: Ian H.W. Kim، 윤재찬

A woman arrested for breaking in is a romance scam victim. The team set up a stakeout.

بازیگران مهمان: 전수지، 김세연

Yubin's team baits the suspect but finds out things are not as they seem.

بازیگران مهمان: 유하연، 전수지، Yoon Seung-woo، Joo Ha-yeon

The team takes on a cultural artifact theft case and investigates everyone with access to the house.

The suspect claims someone else stole the painting. The team goes undercover to catch the culprit.

Yubin's team uncovers a union of gangsters and forms the Dongbang Group to infiltrate it.

Yubin's team leads a double life and manages to meet the right-hand man of the MZ Union's boss.

A university student is found to have been murdered the same way Yubin's fiancée was.

بازیگران مهمان: Derek Chouinard

Hyunwoo identifies the murderer. Meanwhile, Junghwan obtains CCTV evidence but falls in danger.

بازیگران مهمان: Jo Seok-in، 한사명

Joongryeok hunts down Junghwan's attacker, while Yubin discovers crucial evidence has vanished.

The team trusts Yubin's claim that the real murderer is still out there, and gathers evidence.