Han Tae Joo still remains in the year 1988 even after the serial murder case of Kim Hyun Seok concludes. For their role and duty, the detectives of the Seobu Police Department are ironically faced with a transfer. Captain Kang Dong Cheol is outraged by this, and he seeks to find out answers only to find himself in trouble. Meanwhile, Han Tae Joo receives a call that might help him find his way back home.

Captain Kang Dong Cheol is a suspect in the death of Officer Shin and Chief Kim Gyeong Se. As a fugitive, he can only rely on Han Tae Joo to prove his innocence. Despite the evidence all pointing to Captain Kang, Han Tae Joo still tries to help him. Meanwhile, Chief Ahn Min Sik is determined to arrest Captain Kang Dong Cheol and won't let off one bit.

Han Tae Joo wakes up in a hospital bed confused but back in 2018. He finally makes it back home where the people he had heard throughout his dream welcome him back. Han Tae Joo pieces back the fragment memories of his dream and starts to pursue the killer, Kim Min Seok, again. Meanwhile, Kim Min Seok strikes again, only this time, his method leads him to his demise.