Train
A hard-hitting detective who fearlessly dives into his work, Seo Do Won is relentless when it comes to bringing criminals to justice. Willing to take on any case, no matter how hard, Do Won has made a name for himself as a man who gets the job done. But when the woman he loves becomes the latest victim of a serial killer, his world completely changes. Literally. Mysteriously able to move between parallel universes, Do Won now lives in both worlds as a man who must pay for the sins of his father in one, and as a man forced to live a precarious life because of those sins in the other. As if the duality of his life wasn't hard enough to deal with, he soon learns that his deceased love may be gone in one world, but she's very much alive in the other. Vowing to track down her killer in one universe, while simultaneously trying to protect her in the other, Do Won is quick to acknowledge this is not something he can do alone. Seeking the help of his colleagues in both universes, Do Won asks Han Seo Kyung, an honest, yet reserved prosecutor with a big heart in one world, and a cold and emotionless detective in the other, to help him out. Together with Lee Jung Min, a tenacious member of the scientific investigation unit, they'll do whatever it takes to track down the killer in one world and protect his love in the other.
- 2020-2020
- 1 season
- Fantasy, Suspense, Science Fiction
A hard-hitting detective who fearlessly dives into his work, Seo Do Won is relentless when it comes to bringing criminals to justice. Willing to take on any case, no matter how hard, Do Won has made a name for himself as a man who gets the job done. But when the woman he loves becomes the latest victim of a serial killer, his world completely changes. Literally. Mysteriously able to move between parallel universes, Do Won now lives in both worlds as a man who must pay for the sins of his father in one, and as a man forced to live a precarious life because of those sins in the other. As if the duality of his life wasn't hard enough to deal with, he soon learns that his deceased love may be gone in one world, but she's very much alive in the other. Vowing to track down her killer in one universe, while simultaneously trying to protect her in the other, Do Won is quick to acknowledge this is not something he can do alone. Seeking the help of his colleagues in both universes, Do Won asks Han Seo Kyung, an honest, yet reserved prosecutor with a big heart in one world, and a cold and emotionless detective in the other, to help him out. Together with Lee Jung Min, a tenacious member of the scientific investigation unit, they'll do whatever it takes to track down the killer in one world and protect his love in the other.
Season 1 Episode Guide
12 Episodes 2020
Episode 1
The Skeletons at the Closed Station
Do Won and Seo Kyung both lose their fathers on the same night 12 years ago. In the present day, Do Won is a police officer and Seo Kyung a prosecutor. The police discover several skeletons on the train tracks at Mukyeong Station, which has been closed for five years. Do Won heads to the station while chasing a key suspect.
Episode 2
The Truth From 12 Years Ago
Do Won confesses to Seo Kyung that his father was the one who killed Seo Kyung's dad 12 years ago. Seo Kyung feels shocked and betrayed. Meanwhile, Do Won chases the suspect of the Mukyeong Station Serial Murders, and Seo Kyung discovers her mother's stolen jewelry from 12 years ago on the recently discovered corpses.
Episode 3
A Reversible Death
60 mins
Seo Kyung dies at the hands of the Mukyeong Serial Killer. Do Won realizes that this is the same culprit from the murder case 12 years ago. However, the more he investigates, the more mysterious things seem to get. Just as he is falling deeper into sorrow over losing Seo Kyung, Do Won sees someone at Mukyeong Station.
Episode 4
The Other Me in the Other World
Do Won arrives in World B and meets the Seo Kyung of this world. The other Do Won is supposedly on the run after being named as a prime suspect of the murder of a drug broker. He is confused about whether or not the other Do Won really is the culprit. Meanwhile, he is shocked to meet someone unexpected in this world.
Episode 5
A World Of Reversed Life And Death
The Seo Kyung of World B transfers to Mukyeong Police Station. Do Won of World A starts his search for the victims of his last case before coming to World B, the Mukyeong Station Serial Murder. Meanwhile, a new missing person case comes into Mukyeong Police Station, and Do Won runs into an unexpected person while chasing down a key suspect.
Episode 6
Make Them Pay No Matter What
Jin Woo is the prime suspect in World B, and Do Won tries to figure out what has happened in this world. Seo Kyung seems to have a dark past in World B. Do Won tries to console Seo Kyung, but she doesn't want Do Won to get closer. Jin Woo in World B did not have Do Won to stop him from his wrongdoings.
Episode 7
Hoping The Truth Is A Lie
Do Won finds traces of the real killer on the body of Jo Young Ran. Seo Kyung and Do Won begin tracking down the real culprit of the 12-year-old case once again. Meanwhile, Do Won discovers something about Seo Kyung's past during his investigations. Later on, Seo Kyung confronts Sung Wook.
Episode 8
Face to Face
Sung Wook falls off of a building right before Do Won and Seo Kyung's eyes. As they continue to investigate Sung Wook's past, they find themselves at yet another dead end. Meanwhile, the two Do Wons end up meeting face to face. As they both continue searching for the real culprit, Do Won's father tries hypnosis to try to bring back his memories.
Episode 9
The Death of the Other Me
Jae Chul and Do Won of World B die in a mysterious car accident, and Seo Kyung finds out that the living Do Won is from another world. Seo Kyung feels confused about Do Won's claim that there are two parallel worlds. Meanwhile, Do Won finds traces of the real culprit on the dead Do Won's body. He is shocked to find out who the real culprit is.
Episode 10
Looking for Evidence
Do Won finds out who the real killer is. However, the killer is already ahead of everyone else. Min Jun turns himself in only to fool the team as they don't have the corpses to prove his crime. The squad tries everything to find ways to back Min Jun's statement and lock him in prison.
Episode 11
The Two Worlds Disconnect
Do Won finds out that the culprit who has been covering up Seok Min Jun's crimes was Mi Sook. As both Do Won and Seo Kyung wait for Train 8210 to arrive, it suddenly stops running, separating the two in different worlds. Meanwhile, Do Won chases down Mi Sook in World A, and Seo Kyung tracks down Min Jun's last target in World B.
Episode 12
The Last Stop
62 mins
Min Jun's anger causes him to strangle his mother, Mi Sook. Seo Kyung, knowing that Mi Sook would be Min Jun's final target, arrives at the scene but finds herself in danger. Do Won must stop fate from repeating itself and save Seo Kyung from peril.
