|Original run:||23.10.2021 — 12.12.2021|
|Country of origin:||South Korea|
|Genre:||Action, Drama, Mystery|
|Watched by:||923 of 813 719|
|Total running time:||18 hours 40 minutes|
|Episode duration:||70 min.|
|IMDB rating:||7.4 of 10 969|
It's the story of Rangers and other Chirisan National Park staff who climb mysterious and unexplored places on the mountain in an attempt to rescue survivors and lost travelers.
So Yi Kang is the park's chief ranger with vast navigation experience, making her well versed in the search for missing persons. One day, she becomes a partner of Kang Hyun Jo, a park rookie, a graduate of a military academy and a former lieutenant who survived a horrific incident on Mount Chiri that resulted in him becoming a ranger.
The drama centers around the mysteries surrounding many visitors to the mountain: those who came to kill and those who came to commit suicide.