Hidden Identity

Moo-won brings Gun-woo to the investigative squad to infiltrate Jung's syndicate.

Gun-woo is given his first mission: to infiltrate Jung's organization as part of their sales team.

The investigative squad and Gun-woo implement a secret plan to chase Jung. 

With Gun-woo, the team investigates a murder incident, but falls into an unexpected trap.

A dead body is found and Min-ju gets in danger of losing her life.

Dae-hyun makes a tempting offer to Tae-in. Meanwhile, Moo-won gets threatened by an unknown group.

Moo-won becomes a criminal all of sudden and the team strives to prove his innocence.

The Ghost aims for a lethal weapon. Gun-woo is enraged at In-ho and suddenly turns reckless.

Gun-woo suddenly disappears. While the team strives to find him, Gun-woo makes a deal with Se-jin.

Gun-woo makes a huge mistake and the investigative team makes a scenario to chase Nam In-ho.

The hidden truth of Moo-won is revealed, and the team finally gets the chance to find the Ghost.

The tense atmosphere fills the charity party and the team gets involved in an unexpected incident.

As the investigative team gets closer to the Ghost, the squad faces the most shocking truth.

The team finds out the hidden truth of the Ghost. Meanwhile, Moo-won and Min-ju fall in a trap.

The team enters the Ghost's hideout and gets shocked to face Tae-in in a miserable figure.

The squad resolves not to let Tae-in die in vain. Meanwhile, Dae-hyun makes an offer to Moo-won.