Part 1: Ha Na finds Do Ki’s employee identification card at Park Yang Jin’s vacation home, or at least what’s left of it after the explosion. She believes that someone stole her suspect and tried to cover up the evidence. As she grows more and more suspicious, Ha Na visits Do Ki to try to get some information out of him.
Part 2: Kyung Gu loses money to a voice phishing scam. When he goes to report it to the police, he realizes that he is not the only victim. Sung Chul and the team discuss whether they should take on this voice phishing ring as their next target. Once they decide to do so, Jin Eon and Do Ki go undercover.