
On his birthday, So Mun's struck by a strange burst of light that leaves puzzling changes to his body. He finds answers inside the local noodle shop.
Guest Stars:
Sung Ji-ru, Jun Suk-ho, Son Yeo-eun, Kim Geon-u, Kim Yeon-woo
The Counters give Mun an extraordinary surprise. While contemplating whether he wants to join them, he's given a taste of the action.
Guest Stars:
Jun Suk-ho, Son Yeo-eun, Kim Geon-u, Kim Yeon-woo, Kim Yong-Han
Lim Ju-yeon and Kim Ung-min notice something is different about Mun. Ga Mo-tak heads to the police station for answers about his forgotten past.
Guest Stars:
Kim Yeon-woo, Kim Yong-Han, Kim Si-eun, Kang Jeong-woo, Lee Kyu-ho
In a confrontation with violent bullies, Mun loses control over his rage — and must face the consequences. Mo-tak is reunited with his old cellphone.
Guest Stars:
Kim Yeon-woo, Kim Yong-Han, Lee Kyu-ho, Jang Won-hyuk, Park A-sung
Do Ha-na saves Mun from the attacks of a powerful demon with a malicious tongue. Kim Jeong-yeong helps Mo-tak look into his last detective case.
Guest Stars:
Son Kang-gook, Park Jin-soo, Lee Do-gyeong, Cha Si-won, Kwon Hyuk
While the Counters attempt to keep the truth behind his painful past from Mun, he discovers a mysterious memory card among his parents' belongings.
Guest Stars:
Jun Suk-ho, Son Yeo-eun, Kim Geon-u, Son Kang-gook, Park Jin-soo
During a trip into his most traumatic memory, Mun has his first encounter with Ji Cheong-sin. Later, he leads the Counters to a car junkyard.
Guest Stars:
Son Kang-gook, Park Jin-soo, Cha Si-won, Kwon Hyuk, Park Seo-yeon
Things get personal for Ha-na as she takes down a familiar demon. The team tries to locate a reservoir tied to a case Mun's father had worked.
Guest Stars:
Son Kang-gook, Park Jin-soo, Cha Si-won, Park Seo-yeon, Lee Ye-bit
Cheong-sin leaves Mun in a bad state, but Chu Mae-ok is determined to save his life. The Counters set out to make the mayor's corruption public.
Guest Stars:
Son Kang-gook, Park Jin-soo, Kim Jung-jin, Kwon Hyuk, Shim Young-min
Wi-gen calls for an action that could take everything away from Mun. When stunning news about Cheong-sin is reported, the Counters can't believe it.
Guest Stars:
Kim Yeon-woo, Kim Yong-Han, Kim Geon-ho, Son Kang-gook, Park Jin-soo
The Counters struggle in a mismatched fight against an increasingly dangerous Cheong-sin and the other demons. Mo-tak's memories resurface.
Guest Stars:
Jun Suk-ho, Son Kang-gook, Kim Jung-jin, Woo Mi-hwa, Jo Ha-seok
A heartbroken Mo-tak and the team plot revenge against Shin Myeong-hwi and his collaborators. While carrying out their scheme, a human corpse turns up.
Guest Stars:
Son Kang-gook, Park Jin-soo, Kim Jung-jin, Cha Si-won, Kim Yi-kyeong
As Cheong-sin becomes nearly unstoppable, the Counters learn there may be a way to defeat him for good. Mo-tak gets justice for Jeong-yeong.
Guest Stars:
Kim Yeon-woo, Kim Yong-Han, Son Kang-gook, Park Jin-soo, Kim Jung-jin
Myeong-hwi's son notices something about his father isn't quite right. When Baek Hyang-hui kidnaps a young girl, the Counters rush after her.
Guest Stars:
Kim Yeon-woo, Kim Yong-Han, Cha Si-won, Song Kyung-hwa, Park Sang-hyeok
The team welcomes back a Counter who's been overseas. After confirming his suspicions about his father, Shin Hyeok-u goes to Mun.
Guest Stars:
Son Ho-jun, Kim Jung-jin, Song Ji-woo, Song Kyung-hwa, Park Sang-hyeok