Jirisan

"Jirisan" follows the story of an elite team of rangers who risk their lives to save stranded trekkers and solve mysteries in South Korea's largest and most dangerous national park. With towering views and treacherous terrain, the park is a magnet for adventure seekers and the rangers must use their expertise and bravery to protect visitors and uncover the secrets of the mountain. But as they delve deeper into the mysteries of Jirisan, they begin to uncover a dark and sinister truth that threatens to destroy everything they hold dear.

You can stream Jirisan on: Amazon Prime Rakuten VIKI Amazon Store

Some TV shows that have similar genres and were produced around the same time as Jirisan include Severance, The Residence, The Crow Girl, Yellowjackets, High Potential, School Spirits.