Ekspert od portretów zabójców z 2015 roku i detektyw z 1989 roku łączą siły, by walczyć z przestępczością. Rozmawiają przez krótkofalówkę, która działa poza czasem.
The main protagonist continues to try catching the culprit that kidnapped his childhood friend and after that they began a small police force which solved outdated unsolved cases and they are starting on a popular serial killer case.
Following the trail the Section Chief left, Park Hae Young uncovers the truth behind his brother's death. Meanwhile, Cha Soo Hyun finds Lee Jae Han's radio in Hae Young's possession.
Park Hae Young is framed and arrested for the murder of the Section Chief. Cha Soo Hyun sets out to save Lee Jae Han and to find the one witness who can bring down their enemy.