Han Tae Joo witnesses his father being shot at a reoccurring place in his memory and ends up rescuing his younger self hiding in the tunnel. Despite the warnings about the Seongho Gang, Han Tae Joo charges after Oh Jung Man, the boss and the man he suspects who had called the hit on his father and Go Yeong Suk, and brings him in for questioning. However, there is more to know for Han Tae Joo, as Oh Jung Man walks out smiling freely with a very influential man of Insung behind him.

Han Tae Joo's pursuit of his father's killer and the intangible Kim Min Seok gets more distant as the detectives of Insung are baffled once again when another murder case arises. Nothing seems to be certain. However, the body of the dead woman leads Han Tae Joo and the team to her house where they find traces of Kim Min Seok's existence. Can all of these murders be connected, but how?

With the prime suspect ending up dead during questioning, the detectives of Seobu are thrown into confusion, having doubts and suspicions of one another. However, they press on unsupported and get closer to catching the real culprit. As things start to turn for the worst, Han Tae Joo receives a phone call from someone who tells him a way to get back home.