Season 1 poster

Season 1

(2021)

Overview

A team of expert mountain rangers put their lives on the line to save stranded trekkers, solve haunting mysteries and protect Jirisan National Park.

Cast

Jun Ji-hyun as Seo Yigang
Jun Ji-hyun

as Seo Yigang

Ju Ji-hoon as Kang Hyeonjo
Ju Ji-hoon

as Kang Hyeonjo

Sung Dong-il as Jo Daejin
Sung Dong-il

as Jo Daejin

Oh Jung-se as Jeong Gooyoung
Oh Jung-se

as Jeong Gooyoung

Jo Han-chul as Park Ilhae
Jo Han-chul

as Park Ilhae

Joo Min-kyung as Lee Yangseon
Joo Min-kyung

as Lee Yangseon

Go Min-si as Lee Dawon
Go Min-si

as Lee Dawon

Lee Ga-sub as Kim Sol
Lee Ga-sub

as Kim Sol

Ju Jin-mo as Kim Gyehee
Ju Jin-mo

as Kim Gyehee

Kim Kuk-hee as Yoon Soojin
Kim Kuk-hee

as Yoon Soojin

Kim Yeong-ok as Lee Moonok
Kim Yeong-ok

as Lee Moonok

Yun Ji-on as Lee Sewook
Yun Ji-on

as Lee Sewook

Jun Suk-ho as Kim Woongsoon
Jun Suk-ho

as Kim Woongsoon

Han Dong-ho as Park Gyeonghwan
Han Dong-ho

as Park Gyeonghwan

Choi Won as Lee Jonggoo
Choi Won

as Lee Jonggoo

Cha Woo-young as Jinhyeong
Cha Woo-young

as Jinhyeong

Jung Dong-hoo as Sergeant Kim Hyeonsoo
Jung Dong-hoo

as Sergeant Kim Hyeonsoo

Kim Do-yeon as Seo Yigang (Young)
Kim Do-yeon

as Seo Yigang (Young)

Ye Su-jeong as Lee Geumrye
Ye Su-jeong

as Lee Geumrye

Son Suk-ku as Im Cheolgyeong
Son Suk-ku

as Im Cheolgyeong

Kang Ji-woo as Seo Yigang (Young)
Kang Ji-woo

as Seo Yigang (Young)

Uhm Hyo-seop as Yang Geuntak
Uhm Hyo-seop

as Yang Geuntak

Kim Ki-cheon as Lee Jaegeun
Kim Ki-cheon

as Lee Jaegeun

Baek Seung-chul as Jang Haksoo
Baek Seung-chul

as Jang Haksoo

Park Hwan-Hee as Choi Heewon
Park Hwan-Hee

as Choi Heewon

Ahn Jung-hun as Bidam Shelter ranger
Ahn Jung-hun

as Bidam Shelter ranger

Kim So-min as Child
Kim So-min

as Child

Episodes

Episode 1 poster

Episode 1 6.0

October 23, 2021

Newly recruited park ranger Kang Hyeonjo is sent to search for a teen who has gone missing in Jirisan National Park but…

Episode 2 poster

Episode 2 6.0

October 24, 2021

While pursuing a vision on the mountain, Hyeonjo meets a man who's searching for his father’s ashes. The two continue t…

Episode 3 poster

Episode 3 7.5

October 30, 2021

The rangers stop a shamanic ceremony, and a girl passes a mysterious message to Hyeonjo. The team gets a report that an…

Episode 4 poster

Episode 4 6.5

October 31, 2021

Seo Yigang beholds a spooky scene in a video recording. Back in 2018, the team is unfairly blamed for the death of a vi…

Episode 5 poster

Episode 5 7.0

November 6, 2021

Yigang tells Hyeonjo that she saw someone with scratch marks on their hand. He suspects it may be the bomber. The range…

Episode 6 poster

Episode 6 6.0

November 7, 2021

Snow closes the park. Yigang learns that someone with the same name as her first love is coming to collect an item. A s…

Episode 7 poster

Episode 7 7.0

November 13, 2021

Yigang realizes that Hyeonjo’s soul is wandering the mountain. In 2019, Hyeonjo sees a vision of a fire. The two are in…

Episode 8 poster

Episode 8 7.0

November 14, 2021

Following a rescue attempt, Hyeonjo finds out that someone has been trying to kill him and realizes that the recent mur…

Episode 9 poster

Episode 9 7.0

November 20, 2021

Lee Dawon is missing. The rangers go in search and find Dawon’s phone, which contains a suspicious voice recording with…

Episode 10 poster

Episode 10 6.0

November 21, 2021

The police find a man lying in shock in the road. Yigang and Hyeonjo get lost on their way to a village and see ominous…

Episode 11 poster

Episode 11 7.0

November 27, 2021

Cho Daejin is arrested as a suspect in Dawon’s death. Yigang develops a strong hunch that one of the rangers is actuall…

Episode 12 poster

Episode 12 7.0

November 28, 2021

The rangers search for groups of climbers trapped in the park by heavy rainfall. Yigang meets a survivor of the 1995 fl…

Episode 13 poster

Episode 13 7.0

December 4, 2021

The rainfall causes fatalities. Hyeonjo discovers that the accident on the bridge was intentional and looks into the co…

Episode 14 poster

Episode 14 6.0

December 5, 2021

At Geomeundarigol Village, Hyeonjo catches a suspicious man in black gloves. After hearing his testimony, Hyeonjo start…

Episode 15 poster

Episode 15 7.0

December 11, 2021

Hyeonjo’s family decides to switch off his life support. The rangers start looking into people connected to the village…

Episode 16 poster

Episode 16 6.0

December 12, 2021

After the truth is finally revealed, Yigang grills the perpetrator. The culprit goes to conceal some evidence, but ther…