Train

This is one the best sci-fi crime thriller drama from south korea. Also it's the best treat for world wide korean drama lovers. I can't wait for the next episodes. Never miss this experience. My rating is 9/10

I really enjoyed this series, the acting and script is first rate... I have enjoyed all the time travel Korean shows but this one is the best, maybe cause it's 12 episodes only... The lead actors are superb and I have watched now about 25 plus Korean dramas and this us definitely near the top with Mr Sunshine, Misaeng, Heachi and Stranger. Definitely recommended this series

Not kidding i don't want this drama to end. Oh my god, i have watched like 50 korean dramas, in fact, more. The direction is fine but the story really is the hero. The actor in the lead role does it so well. It is a treat to watch it.

I must admit that I was confused during the first five or so episodes but was intrigued enough to stay with it.

I am happy I did because the story began to unravel and make sense after that. Much suspension of disbelief is required but then again, this is a sci fi/fantasy show so a lot of creative license was used.

Actors turned in good performances. I last saw the female lead as half of the second couple in Weightlifting Kim Bok-joo. Male lead in this show was very convincing as good cop/bad cop. This show is recommendable to those who love suspense, crime, whodunnit shows.

12 episodes were well-utilized. The team thought well enough not to force 16 episodes out if this.

Holy shit how is this drama so underrated?? It has a fantastic script, characters, actors, soundtrack, filming etc. I really enjoyed this. It's probably one of my favourite sci-fi/crime kdramas. Excellent acting form Yoon Siyoon also. Wooowwwwww. Don't give this one a miss. That's all I can say.