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Episode 1

Episode number: 1

Overview: 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.

Episode 2

Episode number: 2

Overview: 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.

Episode 3

Episode number: 3

Overview: 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.

Episode 4

Episode number: 4

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

Episode 5

Episode number: 5

Overview: 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.

Episode 6

Episode number: 6

Overview: 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.

Episode 7

Episode number: 7

Overview: 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.

Episode 8

Episode number: 8

Overview: 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.

Episode 9

Episode number: 9

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

Episode 10

Episode number: 10

Overview: 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.

Episode 11

Episode number: 11

Overview: 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.

Episode 12

Episode number: 12

Overview: 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.

Episode 13

Episode number: 13

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

Episode 14

Episode number: 14

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

Episode 15

Episode number: 15

Overview: 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.

Episode 16

Episode number: 16

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