Season 1

Kim Ji-yong loses his mother to a gangster and begins punishing criminals who evade the law.

Choi Mi-ryeo baits the Vigilante with more information on criminals on REPO25h.

Copycat crimes emerge nationwide, and Jo Heon and Choi Mi-ryeo chase after the Vigilante.

The fake Vigilante suggests joining forces, and Jo Heon closes in on the Vigilante's identity.

Mi-ryeo reports on Se-wool's alleged crimes, and Kim Ji-yong and Jo Heon come into conflict.

Ji-yong and Gang-ok help Mi-ryeo continue digging into Kim Sam-doo and the Vole.

The Vole tries to bury the case by sacrificing Kim Samdoo, but Samdoo retaliates with all he has.

Kim Jiyong gathers everyone involved in one location, and the final battle begins.