Episode 1
Job Interview & Audition
The Subway Police of Wangsoori Station is led by Chief Inspector Ko Ji Seok. He is the best of the best, altho...
Episode 2
Going Home to Family
Ryung officially becomes a member of the Wangsoori Subway Police and Ji Seok’s partner. Ryung gets into troubl...
Episode 3
Disciplinary Hearing
Ryung and Ji Seok attend the disciplinary committee hearing and return to the station for night duty. Thanks t...
Episode 4
Tracking Down the Grasshoppers
Ryung and Ji Seok save Choi Do Chul just in time. Throughout their investigation, Ji Seok miraculously learns...
Episode 5
Club Day
Ji Seok makes up his mind to kick Ryung out of the Subway Police for taking investigations into her own hands...
Episode 6
A Petty Thief?
A rumor circulates about people disappearing after they party all night on Club Day, then taking the first tra...
Episode 7
Jealousy & Confusion
Subway Police and the Metropolitan Detective Division come together for a joint investigation. Despite Ji Seok...
Episode 8
Facing the Harsh Truth
Ma Ri leaves Ryung after saying harsh words that keep replaying in Ryung’s mind. Still, Ryung continues her se...
Episode 9
Getting Closer to the Subway Ghost
Ryung and Ji Seok work together to save Jung Hoon and catch the kidnapper. With their great partnership, they...
Episode 10
The Hideout
The Subway Ghost’s hideout is finally uncovered. Through the evidence found in the hideout, the police slowly...
Episode 11
Going After the Grasshoppers
The police make headway on the Subway Serial Murders and narrow down the suspect list. After getting a tip abo...
Episode 12
The One that Got Away
One of the Grasshoppers gets away from the police. The other two Grasshoppers confess that they only know him...
Episode 13
The Grasshoppers Are Behind Bars
Ji Seok and Ryung catch the remaining Grasshopper who everyone believes is the Subway Ghost. However, while be...
Episode 14
The Subway Ghost Reveals Himself
The police believe the Subway Ghost is in a mental hospital and that he plans to commit another murder. They c...
Episode 15
The Subway Ghost’s Method
Ryung and Ji Seok make their way into Kyung Hee’s house and find a room that looks like a young girl’s. After...
Episode 16
Finally Catching the Subway Ghost
Finally, Ryung and the Subway Ghost come face to face. As his rage explodes, the Subway Ghost attacks Ryung, b...