On his birthday, So Moon's struck by a strange burst of light that leaves puzzling changes to his body. He finds answers inside the local noodle shop.

The Counters give Moon an extraordinary surprise. While contemplating whether he wants to join them, he's given a taste of the action.

Im Ju Yeon and Kim Woong Min notice something is different about Moon. Ga Mo Tak heads to the police station for answers about his forgotten past.

In a confrontation with violent bullies, Moon loses control over his rage, and must face the consequences. Mo Tak is reunited with his old cellphone.

Do Ha Na saves Moon from the attacks of a powerful demon with a malicious tongue. Kim Jeong Yeong helps Mo Tak look into his last detective case.

While the Counters attempt to keep the truth behind his painful past from Moon, he discovers a mysterious memory card among his parents' belongings.

During a trip into his most traumatic memory, Moon has his first encounter with Ji Cheong Shin. Later, he leads the Counters to a car junkyard.

Things get personal for Ha Na as she takes down a familiar demon. The team tries to locate a reservoir tied to a case Moon's father had worked.

Cheong Shin leaves Moon 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.

Wigen calls for an action that could take everything away from Moon. When stunning news about Cheong Shin is reported, the Counters can't believe it.

The Counters struggle in a mismatched fight against an increasingly dangerous Cheong Shin and the other demons. Mo Tak's memories resurface.

The Counters deal with a stunning loss and get permission to move against the Mayor and his supporters.

As Cheong Shin becomes nearly unstoppable, the Counters learn there may be a way to defeat him for good. Mo Tak gets justice for Jeong Yeong.

Myeong Hwi's son notices something about his father isn't quite right. When Baek Hyang Hee kidnaps a young girl, the Counters rush after her.

The team welcomes back a Counter who's been overseas. After confirming his suspicions about his father, Shin Hyeok Woo goes to Moon.

The final face-off against Myeong Hwi tests Moon and the other Counters' limits. In Yung, long-awaited reunions take place.