A story of twin brothers uncovering the truth from an incident 22 years ago.
Genre: Drama, Mystery, Thriller
Cast:Ji Sung , Seo Ji-hye , Soo-kyung Lee , Heo Sung-tae , Dae-hwan Oh , Lee Ho-Cheol , Lee Kyung-young , Jung-min Hwang , Seo Hyun-woo , Choi Deok-moon , Shin Hyun-Seung , Woo Hyun-Zoo , Ren Hanami , Seong-Ha Cho , Lee Shi-won , Go Yoon , Eugene Ko , Jung Young-hoon
Woo-sin enters Kwon's mansion in search of Adamas. Su-hyeon begins to question his father's death.
Woo-sin tries to lure Tae-song into his plan while Su-hyeon meets with a witness.
Woo-sin's plan is on the verge of collapsing and Su-hyeon's witness is suddenly found dead.
Woo-sin lights a fire in the mansion to find Adamas and Su-hyeon receives a mysterious text message.
Woo-sin plans to steal Adamas, and Su-hyeon interrogates the person who followed him.
Woo-sin searches for the disappeared Adamas and Su-hyeon and Seo-hee are ambushed by Team A.
Woo-sin asks Hye-soo for help to keep Mrs. Oh silent, and Su-hyeon and Seo-hee find out who Team A is.
Woo-sin writes a novel about Soon-yi's dead son and Su-hyeon tries to secure his father's autopsy report.
Woo-sin eyes the eightieth anniversary ceremony. Su-hyeon and Seo-hee head to ARES.
Su-hyeon searches for Seo-hee and Woo-sin gets involved in a case with Tae-sung and Agent Kim.
Woo-sin carries out his plan to steal Adamas. Su-hyeon receives an invitation and heads to the hall.
Woo-sin tries to understand Kwon's true intentions, and Su-hyeon makes an all-out effort to save Seo-hee.
Su-hyeon meets Lee Chang-woo and learns the truth. Woo-sin looks into the Kangchun prison incident.
Woo-sin becomes a hostage of Team A. Su-hyeon and Seo-hee go to save Woo-sin.
Woo-sin searches for the missing figure and Su-hyeon follows the clues left by Team A.
Su-hyeon bumps into Jun-kyung on Team A's black site. Woo-sin and Seo-hee run to Su-hyeon's rescue.