Chapter 1

Min Yoongi is a young man who lives in Seoul, South Korea with his boyfriend Jeon Jungkook. Yoongi decides to take a break from work and visit Jungkook's family in Busan. But as soon as they step on the train, tragedy strikes and they realize that they, along with a few friends, have to fight to stay alive on the train of doom and head to Busan. The only place that is safe.