E1 - Episode 1

Aired: 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 is impeded by a typhoon.

E2 - Episode 2

Aired: 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 their risky ascent together.

E3 - Episode 3

Aired: 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 elderly woman has disappeared.

E4 - Episode 4

Aired: 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 villager.

E5 - Episode 5

Aired: November 06, 2021

Yigang tells Hyeonjo that she saw someone with scratch marks on their hand. He suspects it may be the bomber. The rangers look for Lee Yangseon.

E6 - Episode 6

Aired: November 07, 2021

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

E7 - Episode 7

Aired: 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 danger in different places.

E8 - Episode 8

Aired: November 14, 2021

Following a rescue attempt, Hyeonjo finds out that someone has been trying to kill him and realizes that the recent murders weren't a coincidence.

E9 - Episode 9

Aired: November 20, 2021

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

E10 - Episode 10

Aired: 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 lights in the darkness.

E11 - Episode 11

Aired: 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 actually the killer.

E12 - Episode 12

Aired: November 28, 2021

The rangers search for groups of climbers trapped in the park by heavy rainfall. Yigang meets a survivor of the 1995 flood that killed her parents.

E13 - Episode 13

Aired: December 04, 2021

The rainfall causes fatalities. Hyeonjo discovers that the accident on the bridge was intentional and looks into the connections between the victims.

E14 - Episode 14

Aired: December 05, 2021

At Geomeundarigol Village, Hyeonjo catches a suspicious man in black gloves. After hearing his testimony, Hyeonjo starts to suspect someone new.

E15 - Episode 15

Aired: December 11, 2021

Hyeonjo’s family decides to switch off his life support. The rangers start looking into people connected to the village, and Yigang has a revelation.

E16 - Episode 16

Aired: December 12, 2021

After the truth is finally revealed, Yigang grills the perpetrator. The culprit goes to conceal some evidence, but there meets Hyeonjo’s soul.