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. (Source: Viu)