Train: 1x9

Episode 9

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.